diff --git a/README.md b/README.md
index 35e7217..13695a6 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,22 @@ Node.js 프로그래밍 : 클라우드 컴퓨팅 시대의 고성능 자바스
     - [강컴](http://kangcom.com/sub/view.asp?topid=5&sku=201202070001)
     - [인터파크](http://book.interpark.com/product/BookDisplay.do?_method=detail&sc.shopNo=0000400000&sc.prdNo=209853133&bookblockname=b_sch&booklinkname=bprd_title)
     - [교보문고](http://www.kyobobook.co.kr/product/detailViewKor.laf?mallGb=KOR&ejkGb=KOR&barcode=9788960772762)
-* 이 예제는 Node.js v0.6.6 기반으로 작성되었습니다.
+* 이 예제는 Node.js v0.8.14 기반으로 작성되었습니다.
 * 잘못된 부분을 발견하시면 이슈에 등록해 주세요.
 
 
+## 기존 소스에 비해서 주요 변경사항
+
+* node 0.8.x 호환성 맞춤
+    * `path.exist` -> `fs.exist`
+* npm 모듈 최신버전으로 갱신
+    * restler 2.0.1로 업그래이드
+    * express 3.1.x로 업그래이드
+        * express 실행코드 변경
+        * jade 템플릿을 레이아웃 방식에서 상속방식으로 변경
+        * socket.io 연동객체 변경
+    * socket.io 0.9.x으로 업그래이드 
+    * clog 0.1.x로 업그래이드
+
+* 주요 변경사항은 [커밋로그](https://github.com/outsideris/node.js-programming/commit/c0b42b349135b2ad5c85f8f3165bbeec99f6ffb1)에서 확인할 수 있습니다.
+
diff --git a/chapter-05/app1.js b/chapter-05/app1.js
index 9b0e3f4..d005491 100644
--- a/chapter-05/app1.js
+++ b/chapter-05/app1.js
@@ -1,17 +1,26 @@
-var rest = require('restler');
+var rest = require('restler')
+  , auth = require('./auth');
 
 var Tweet = {
     sinceId: '1' 
   , getTweets: function(search, callback) {
       search = encodeURIComponent(search);
-    
-      rest.get(
-        'http://search.twitter.com/search.json?q=' + search +
-        '&result_type=recent' +
-        '&rpp=100' +
-        '&since_id=' + Tweet.sinceId
-      ).on('complete', function(data) {
-        console.log(data);
+
+      // auth()에서 엑세스토큰을 얻어오고 API 요청을 할 때 헤더로 전달한다
+      auth(function(err, accessToken) {
+        rest.get(
+          'https://api.twitter.com/1.1/search/tweets.json?q=' + search +
+          '&result_type=recent' +
+          '&count=100' +
+          '&since_id=' + Tweet.sinceId
+          , {
+            'headers': {
+              'Authorization': accessToken
+            }
+          }
+        ).on('complete', function(data) {
+          console.log(data);
+        });
       });
     }
 }
diff --git a/chapter-05/app2.js b/chapter-05/app2.js
index be29a11..4b34979 100644
--- a/chapter-05/app2.js
+++ b/chapter-05/app2.js
@@ -1,30 +1,39 @@
 var rest = require('restler')
-  , fs = require('fs');
+  , fs = require('fs')
+  , auth = require('./auth');
 
 var Tweet = {
     sinceId: '1' 
   , getTweets: function(search, callback) {
       search = encodeURIComponent(search);
     
-      rest.get(
-        'http://search.twitter.com/search.json?q=' + search +
-        '&result_type=recent' +
-        '&rpp=100' +
-        '&since_id=' + Tweet.sinceId
-      ).on('complete', function(data) {
-        var text = "";
-        data.results.forEach(function(elem, index, array) {
-          text += elem.from_user + ': ' +
-            elem.text + ' at' + elem.created_at + '\n';
-        });
+      // auth()에서 엑세스토큰을 얻어오고 API 요청을 할 때 헤더로 전달한다
+      auth(function(err, accessToken) {
+        rest.get(
+          'https://api.twitter.com/1.1/search/tweets.json?q=' + search +
+          '&result_type=recent' +
+          '&count=100' +
+          '&since_id=' + Tweet.sinceId
+          , {
+            'headers': {
+              'Authorization': accessToken
+            }
+          }
+        ).on('complete', function(data) {
+          var text = "";
+          data.statuses.forEach(function(elem, index, array) {
+            text += elem.user.screen_name + ': ' +
+              elem.text + ' at' + elem.created_at + '\n';
+          });
 
-        fs.open('./tweets.txt', 'a', 0666, function(err, fd) {
-          if(err) { throw err; }
-          var buffer = new Buffer(text);
-          fs.write(fd, buffer, 0, buffer.length, null
-            , function(err) {
-                fs.close(fd, function() {
-                }); 
+          fs.open('./tweets.txt', 'a', 0666, function(err, fd) {
+            if(err) { throw err; }
+            var buffer = new Buffer(text);
+            fs.write(fd, buffer, 0, buffer.length, null
+              , function(err) {
+                  fs.close(fd, function() {
+                  }); 
+            });
           });
         });
       });
diff --git a/chapter-05/app3.js b/chapter-05/app3.js
index 5b2a415..6129ecd 100644
--- a/chapter-05/app3.js
+++ b/chapter-05/app3.js
@@ -1,5 +1,6 @@
 var rest = require('restler')
-  , fs = require('fs');
+  , fs = require('fs')
+  , auth = require('./auth');
 
 var Tweet = {
     sinceId: '1' 
@@ -11,36 +12,44 @@ var Tweet = {
         if (err) { Tweet.sinceId = 1; }
         else { Tweet.sinceId = maxId; }
 
-        rest.get(
-          'http://search.twitter.com/search.json?q=' + search +
-          '&result_type=recent' +
-          '&rpp=100' +
-          '&since_id=' + Tweet.sinceId
-        ).on('complete', function(data) {
-          var text = "";
-          data.results.forEach(function(elem, index, array) {
-            text += elem.from_user + ': ' +
-              elem.text + ' at' + elem.created_at + '\n';
-          });
+        // auth()에서 엑세스토큰을 얻어오고 API 요청을 할 때 헤더로 전달한다
+        auth(function(err, accessToken) {
+          rest.get(
+            'https://api.twitter.com/1.1/search/tweets.json?q=' + search +
+            '&result_type=recent' +
+            '&count=100' +
+            '&since_id=' + Tweet.sinceId
+            , {
+              'headers': {
+                'Authorization': accessToken
+              }
+            }
+          ).on('complete', function(data) {
+            var text = "";
+            data.statuses.forEach(function(elem, index, array) {
+              text += elem.user.screen_name + ': ' +
+                elem.text + ' at' + elem.created_at + '\n';
+            });
 
-          if (!Tweet.isOpened) {
-            fs.open('./tweets.txt', 'a', 0666, function(err, fd) {
-              if(err) { throw err; }
+            if (!Tweet.isOpened) {
+              fs.open('./tweets.txt', 'a', 0666, function(err, fd) {
+                if(err) { throw err; }
 
-              Tweet.isOpened = true;
-              var buffer = new Buffer(text);
-              fs.write(fd, buffer, 0, buffer.length, null
-                , function(err) {
-                    fs.close(fd, function() {
-                      Tweet.isOpened = false; 
-                      fs.writeFile('./maxid.txt'
-                        , data.max_id.toString()
-                        , function(err) {}
-                      );
-                    }); 
+                Tweet.isOpened = true;
+                var buffer = new Buffer(text);
+                fs.write(fd, buffer, 0, buffer.length, null
+                  , function(err) {
+                      fs.close(fd, function() {
+                        Tweet.isOpened = false; 
+                        fs.writeFile('./maxid.txt'
+                          , data.search_metadata.max_id.toString()
+                          , function(err) {}
+                        );
+                      }); 
+                });
               });
-            });
-          }
+            }
+          });
         });
       });
     }
diff --git a/chapter-05/app4.js b/chapter-05/app4.js
index e0a31b7..93551f6 100644
--- a/chapter-05/app4.js
+++ b/chapter-05/app4.js
@@ -1,6 +1,7 @@
 var rest = require('restler')
   , fs = require('fs')
-  , schedule = require('node-schedule');
+  , schedule = require('node-schedule')
+  , auth = require('./auth');
 
 var Tweet = {
     sinceId: '1' 
@@ -12,36 +13,44 @@ var Tweet = {
         if (err) { Tweet.sinceId = 1; }
         else { Tweet.sinceId = maxId; }
 
-        rest.get(
-          'http://search.twitter.com/search.json?q=' + search +
-          '&result_type=recent' +
-          '&rpp=100' +
-          '&since_id=' + Tweet.sinceId
-        ).on('complete', function(data) {
-          var text = "";
-          data.results.forEach(function(elem, index, array) {
-            text += elem.from_user + ': ' +
-              elem.text + ' at' + elem.created_at + '\n';
-          });
+        // auth()에서 엑세스토큰을 얻어오고 API 요청을 할 때 헤더로 전달한다
+        auth(function(err, accessToken) {
+          rest.get(
+            'https://api.twitter.com/1.1/search/tweets.json?q=' + search +
+            '&result_type=recent' +
+            '&count=100' +
+            '&since_id=' + Tweet.sinceId
+            , {
+              'headers': {
+                'Authorization': accessToken
+              }
+            }
+          ).on('complete', function(data) {
+            var text = "";
+            data.statuses.forEach(function(elem, index, array) {
+              text += elem.user.screen_name + ': ' +
+                elem.text + ' at' + elem.created_at + '\n';
+            });
 
-          if (!Tweet.isOpened) {
-            fs.open('./tweets.txt', 'a', 0666, function(err, fd) {
-              if(err) { throw err; }
+            if (!Tweet.isOpened) {
+              fs.open('./tweets.txt', 'a', 0666, function(err, fd) {
+                if(err) { throw err; }
 
-              Tweet.isOpened = true;
-              var buffer = new Buffer(text);
-              fs.write(fd, buffer, 0, buffer.length, null
-                , function(err) {
-                    fs.close(fd, function() {
-                      Tweet.isOpened = false; 
-                      fs.writeFile('./maxid.txt'
-                        , data.max_id.toString()
-                        , function(err) {}
-                      );
-                    }); 
+                Tweet.isOpened = true;
+                var buffer = new Buffer(text);
+                fs.write(fd, buffer, 0, buffer.length, null
+                  , function(err) {
+                      fs.close(fd, function() {
+                        Tweet.isOpened = false; 
+                        fs.writeFile('./maxid.txt'
+                          , data.search_metadata.max_id.toString()
+                          , function(err) {}
+                        );
+                      }); 
+                });
               });
-            });
-          }
+            }
+          });
         });
       });
     }
diff --git a/chapter-05/auth.js b/chapter-05/auth.js
new file mode 100644
index 0000000..c2f49ef
--- /dev/null
+++ b/chapter-05/auth.js
@@ -0,0 +1,26 @@
+// https://dev.twitter.com/apps 에서 새로운 어플리케이션을 만든 후
+// 생성된 Consumer key와 Consumer secret 키를 아래 변수에
+// 입력해야 함.
+var rest = require('restler');
+
+module.exports = function(callback) {
+  var consumerKey = '생성한 Consumer Key',
+      consumerSecret = '생성한 Consumer Secret';
+
+  rest.post('https://api.twitter.com/oauth2/token', {
+      'Content-Type': 'application/x-www-form-urlencoded'
+    , 'User-Agent': 'Nodejs-programming'
+    , 'data': {
+           'grant_type': 'client_credentials'
+         , 'client_id': consumerKey
+         , 'client_secret': consumerSecret
+         , 'code': ''
+       }
+  }).on('success', function(data) {
+    var accessToken = 'Bearer ' + data.access_token;
+    callback(null, accessToken);
+  }).on('fail', function(data, res) {
+    console.log('엑세스토큰을 얻는데 실패했습니다');
+    console.log(data);
+  });
+};
diff --git a/chapter-05/package.json b/chapter-05/package.json
index 682de08..49faf21 100644
--- a/chapter-05/package.json
+++ b/chapter-05/package.json
@@ -9,8 +9,8 @@
     "node": "~v0.4.10"
   },
   "dependencies": {
-      "node-schedule": "~0.1.4"
-    , "restler": "~0.2.3"
+      "node-schedule": "~0.1.5"
+    , "restler": "~3.1.0"
   },
   "devDependencies": {}
 }
diff --git a/chapter-06/joinin-mongodb/app.js b/chapter-06/joinin-mongodb/app.js
index 8dc1e76..b5ce54a 100644
--- a/chapter-06/joinin-mongodb/app.js
+++ b/chapter-06/joinin-mongodb/app.js
@@ -4,9 +4,10 @@
  */
 
 var express = require('express')
+  , http = require('http')
   , routes = require('./routes')
 
-var app = module.exports = express.createServer();
+var app = module.exports = express();
 
 // Configuration
 
@@ -33,5 +34,6 @@ app.get('/', routes.index);
 app.get('/join', routes.form);
 app.post('/join', routes.join);
 
-app.listen(3000);
-console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);
+var server = http.createServer(app);
+server.listen(3000);
+console.log("Express server listening on port %d in %s mode", server.address().port, app.settings.env);
diff --git a/chapter-06/joinin-mongodb/package.json b/chapter-06/joinin-mongodb/package.json
index ed8eb27..82ad8f9 100644
--- a/chapter-06/joinin-mongodb/package.json
+++ b/chapter-06/joinin-mongodb/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.1",
   "private": true,
   "dependencies": {
-    "express": "~2.5.0",
+    "express": "~3.4.8",
     "jade": ">= 0.0.1",
     "mongolian": "~0.1.14"
   }
diff --git a/chapter-06/joinin-mongodb/views/index.jade b/chapter-06/joinin-mongodb/views/index.jade
index c9c35fa..dcf18da 100644
--- a/chapter-06/joinin-mongodb/views/index.jade
+++ b/chapter-06/joinin-mongodb/views/index.jade
@@ -1,2 +1,5 @@
-h1= title
-p Welcome to #{title}
\ No newline at end of file
+extends layout
+
+block contents
+  h1= title
+  p Welcome to #{title}
diff --git a/chapter-06/joinin-mongodb/views/join-fail.jade b/chapter-06/joinin-mongodb/views/join-fail.jade
index 0064a29..dc62bcb 100644
--- a/chapter-06/joinin-mongodb/views/join-fail.jade
+++ b/chapter-06/joinin-mongodb/views/join-fail.jade
@@ -1,3 +1,6 @@
-h3 회원가입 오류
-p 이미 가입된 이름 또는 이메일입니다.
-a(href='/join') 회원 가입페이지로 돌아가기
+extends layout
+
+block contents
+  h3 회원가입 오류
+  p 이미 가입된 이름 또는 이메일입니다.
+  a(href='/join') 회원 가입페이지로 돌아가기
diff --git a/chapter-06/joinin-mongodb/views/join-form.jade b/chapter-06/joinin-mongodb/views/join-form.jade
index 5aab3da..ac9c3d9 100644
--- a/chapter-06/joinin-mongodb/views/join-form.jade
+++ b/chapter-06/joinin-mongodb/views/join-form.jade
@@ -1,19 +1,22 @@
-h3 회원가입
-p 회원에 가입해 주세요.
-form(id='joinForm', method='POST', action='/join')
-  label(for='name') 이름 : 
-  input(type='text', name='name', id='name')
-  label(for='email') 이메일 : 
-  input(type='text', name='email', id='email')
-  input(type='submit', value='전송')
+extends layout
 
-script(type='text/javascript')
-  $(document).ready(function() {
-    $('#joinForm').submit(function(e) {
-      if ($.trim($('#name').val()) === '' || $.trim($('#email').val()) === '') {
-        alert('이름과 이메일을 입력해 주세요.'); 
-        return false;
-      }
-    }); 
-  });
-  
+block contents
+  h3 회원가입
+  p 회원에 가입해 주세요.
+  form(id='joinForm', method='POST', action='/join')
+    label(for='name') 이름 : 
+    input(type='text', name='name', id='name')
+    label(for='email') 이메일 : 
+    input(type='text', name='email', id='email')
+    input(type='submit', value='전송')
+
+  script(type='text/javascript').
+    $(document).ready(function() {
+      $('#joinForm').submit(function(e) {
+        if ($.trim($('#name').val()) === '' || $.trim($('#email').val()) === '') {
+          alert('이름과 이메일을 입력해 주세요.'); 
+          return false;
+        }
+      }); 
+    });
+    
diff --git a/chapter-06/joinin-mongodb/views/join-result.jade b/chapter-06/joinin-mongodb/views/join-result.jade
index f1a825d..fea1b68 100644
--- a/chapter-06/joinin-mongodb/views/join-result.jade
+++ b/chapter-06/joinin-mongodb/views/join-result.jade
@@ -1,6 +1,9 @@
-h3 회원가입완료
-p 가입한 회원 정보는 아래와 같습니다.
-div
-  ul
-    li 이름 : #{username}
-    li 이메일 : #{useremail}
+extends layout
+
+block contents
+  h3 회원가입완료
+  p 가입한 회원 정보는 아래와 같습니다.
+  div
+    ul
+      li 이름 : #{username}
+      li 이메일 : #{useremail}
diff --git a/chapter-06/joinin-mongodb/views/layout.jade b/chapter-06/joinin-mongodb/views/layout.jade
index f2051cc..c89f4e8 100644
--- a/chapter-06/joinin-mongodb/views/layout.jade
+++ b/chapter-06/joinin-mongodb/views/layout.jade
@@ -1,7 +1,8 @@
-!!!
+doctype html
 html
   head
     title= title
     link(rel='stylesheet', href='/stylesheets/style.css')
     script(type='text/javascript', src='http://code.jquery.com/jquery-1.7.0.min.js')
-  body!= body
+  body
+    block contents
diff --git a/chapter-06/joinin-mysql/app.js b/chapter-06/joinin-mysql/app.js
index 8dc1e76..b5ce54a 100644
--- a/chapter-06/joinin-mysql/app.js
+++ b/chapter-06/joinin-mysql/app.js
@@ -4,9 +4,10 @@
  */
 
 var express = require('express')
+  , http = require('http')
   , routes = require('./routes')
 
-var app = module.exports = express.createServer();
+var app = module.exports = express();
 
 // Configuration
 
@@ -33,5 +34,6 @@ app.get('/', routes.index);
 app.get('/join', routes.form);
 app.post('/join', routes.join);
 
-app.listen(3000);
-console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);
+var server = http.createServer(app);
+server.listen(3000);
+console.log("Express server listening on port %d in %s mode", server.address().port, app.settings.env);
diff --git a/chapter-06/joinin-mysql/package.json b/chapter-06/joinin-mysql/package.json
index efc9c2c..d1494c5 100644
--- a/chapter-06/joinin-mysql/package.json
+++ b/chapter-06/joinin-mysql/package.json
@@ -3,8 +3,8 @@
   "version": "0.0.1",
   "private": true,
   "dependencies": {
-    "express": "~2.5.0",
+    "express": "~3.4.8",
     "jade": ">= 0.0.1",
-    "mysql": "~0.9.5"
+    "mysql": "~2.0.1"
   }
 }
diff --git a/chapter-06/joinin-mysql/repository.js b/chapter-06/joinin-mysql/repository.js
index f9b41fb..98aa169 100644
--- a/chapter-06/joinin-mysql/repository.js
+++ b/chapter-06/joinin-mysql/repository.js
@@ -1,7 +1,7 @@
 var mysql = require('mysql')
   , DATABASE = 'node_test'
   , TABLE = 'members'
-  , client = mysql.createClient({
+  , client = mysql.createConnection({
       user: 'node'
     , password: 'pass'
   });
diff --git a/chapter-06/joinin-mysql/views/index.jade b/chapter-06/joinin-mysql/views/index.jade
index c9c35fa..dcf18da 100644
--- a/chapter-06/joinin-mysql/views/index.jade
+++ b/chapter-06/joinin-mysql/views/index.jade
@@ -1,2 +1,5 @@
-h1= title
-p Welcome to #{title}
\ No newline at end of file
+extends layout
+
+block contents
+  h1= title
+  p Welcome to #{title}
diff --git a/chapter-06/joinin-mysql/views/join-fail.jade b/chapter-06/joinin-mysql/views/join-fail.jade
index 0064a29..dc62bcb 100644
--- a/chapter-06/joinin-mysql/views/join-fail.jade
+++ b/chapter-06/joinin-mysql/views/join-fail.jade
@@ -1,3 +1,6 @@
-h3 회원가입 오류
-p 이미 가입된 이름 또는 이메일입니다.
-a(href='/join') 회원 가입페이지로 돌아가기
+extends layout
+
+block contents
+  h3 회원가입 오류
+  p 이미 가입된 이름 또는 이메일입니다.
+  a(href='/join') 회원 가입페이지로 돌아가기
diff --git a/chapter-06/joinin-mysql/views/join-form.jade b/chapter-06/joinin-mysql/views/join-form.jade
index 5aab3da..ac9c3d9 100644
--- a/chapter-06/joinin-mysql/views/join-form.jade
+++ b/chapter-06/joinin-mysql/views/join-form.jade
@@ -1,19 +1,22 @@
-h3 회원가입
-p 회원에 가입해 주세요.
-form(id='joinForm', method='POST', action='/join')
-  label(for='name') 이름 : 
-  input(type='text', name='name', id='name')
-  label(for='email') 이메일 : 
-  input(type='text', name='email', id='email')
-  input(type='submit', value='전송')
+extends layout
 
-script(type='text/javascript')
-  $(document).ready(function() {
-    $('#joinForm').submit(function(e) {
-      if ($.trim($('#name').val()) === '' || $.trim($('#email').val()) === '') {
-        alert('이름과 이메일을 입력해 주세요.'); 
-        return false;
-      }
-    }); 
-  });
-  
+block contents
+  h3 회원가입
+  p 회원에 가입해 주세요.
+  form(id='joinForm', method='POST', action='/join')
+    label(for='name') 이름 : 
+    input(type='text', name='name', id='name')
+    label(for='email') 이메일 : 
+    input(type='text', name='email', id='email')
+    input(type='submit', value='전송')
+
+  script(type='text/javascript').
+    $(document).ready(function() {
+      $('#joinForm').submit(function(e) {
+        if ($.trim($('#name').val()) === '' || $.trim($('#email').val()) === '') {
+          alert('이름과 이메일을 입력해 주세요.'); 
+          return false;
+        }
+      }); 
+    });
+    
diff --git a/chapter-06/joinin-mysql/views/join-result.jade b/chapter-06/joinin-mysql/views/join-result.jade
index f1a825d..fea1b68 100644
--- a/chapter-06/joinin-mysql/views/join-result.jade
+++ b/chapter-06/joinin-mysql/views/join-result.jade
@@ -1,6 +1,9 @@
-h3 회원가입완료
-p 가입한 회원 정보는 아래와 같습니다.
-div
-  ul
-    li 이름 : #{username}
-    li 이메일 : #{useremail}
+extends layout
+
+block contents
+  h3 회원가입완료
+  p 가입한 회원 정보는 아래와 같습니다.
+  div
+    ul
+      li 이름 : #{username}
+      li 이메일 : #{useremail}
diff --git a/chapter-06/joinin-mysql/views/layout.jade b/chapter-06/joinin-mysql/views/layout.jade
index f2051cc..c89f4e8 100644
--- a/chapter-06/joinin-mysql/views/layout.jade
+++ b/chapter-06/joinin-mysql/views/layout.jade
@@ -1,7 +1,8 @@
-!!!
+doctype html
 html
   head
     title= title
     link(rel='stylesheet', href='/stylesheets/style.css')
     script(type='text/javascript', src='http://code.jquery.com/jquery-1.7.0.min.js')
-  body!= body
+  body
+    block contents
diff --git a/chapter-06/joinin/app.js b/chapter-06/joinin/app.js
index 8dc1e76..b5ce54a 100644
--- a/chapter-06/joinin/app.js
+++ b/chapter-06/joinin/app.js
@@ -4,9 +4,10 @@
  */
 
 var express = require('express')
+  , http = require('http')
   , routes = require('./routes')
 
-var app = module.exports = express.createServer();
+var app = module.exports = express();
 
 // Configuration
 
@@ -33,5 +34,6 @@ app.get('/', routes.index);
 app.get('/join', routes.form);
 app.post('/join', routes.join);
 
-app.listen(3000);
-console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);
+var server = http.createServer(app);
+server.listen(3000);
+console.log("Express server listening on port %d in %s mode", server.address().port, app.settings.env);
diff --git a/chapter-06/joinin/package.json b/chapter-06/joinin/package.json
index b2ea708..18ec444 100644
--- a/chapter-06/joinin/package.json
+++ b/chapter-06/joinin/package.json
@@ -3,7 +3,7 @@
   , "version": "0.0.1"
   , "private": true
   , "dependencies": {
-      "express": "~2.5.0"
+      "express": "~3.4.8"
     , "jade": ">= 0.0.1"
   }
 }
diff --git a/chapter-06/joinin/views/index.jade b/chapter-06/joinin/views/index.jade
index c9c35fa..dcf18da 100644
--- a/chapter-06/joinin/views/index.jade
+++ b/chapter-06/joinin/views/index.jade
@@ -1,2 +1,5 @@
-h1= title
-p Welcome to #{title}
\ No newline at end of file
+extends layout
+
+block contents
+  h1= title
+  p Welcome to #{title}
diff --git a/chapter-06/joinin/views/join-form.jade b/chapter-06/joinin/views/join-form.jade
index 5aab3da..ac9c3d9 100644
--- a/chapter-06/joinin/views/join-form.jade
+++ b/chapter-06/joinin/views/join-form.jade
@@ -1,19 +1,22 @@
-h3 회원가입
-p 회원에 가입해 주세요.
-form(id='joinForm', method='POST', action='/join')
-  label(for='name') 이름 : 
-  input(type='text', name='name', id='name')
-  label(for='email') 이메일 : 
-  input(type='text', name='email', id='email')
-  input(type='submit', value='전송')
+extends layout
 
-script(type='text/javascript')
-  $(document).ready(function() {
-    $('#joinForm').submit(function(e) {
-      if ($.trim($('#name').val()) === '' || $.trim($('#email').val()) === '') {
-        alert('이름과 이메일을 입력해 주세요.'); 
-        return false;
-      }
-    }); 
-  });
-  
+block contents
+  h3 회원가입
+  p 회원에 가입해 주세요.
+  form(id='joinForm', method='POST', action='/join')
+    label(for='name') 이름 : 
+    input(type='text', name='name', id='name')
+    label(for='email') 이메일 : 
+    input(type='text', name='email', id='email')
+    input(type='submit', value='전송')
+
+  script(type='text/javascript').
+    $(document).ready(function() {
+      $('#joinForm').submit(function(e) {
+        if ($.trim($('#name').val()) === '' || $.trim($('#email').val()) === '') {
+          alert('이름과 이메일을 입력해 주세요.'); 
+          return false;
+        }
+      }); 
+    });
+    
diff --git a/chapter-06/joinin/views/join-result.jade b/chapter-06/joinin/views/join-result.jade
index f1a825d..fea1b68 100644
--- a/chapter-06/joinin/views/join-result.jade
+++ b/chapter-06/joinin/views/join-result.jade
@@ -1,6 +1,9 @@
-h3 회원가입완료
-p 가입한 회원 정보는 아래와 같습니다.
-div
-  ul
-    li 이름 : #{username}
-    li 이메일 : #{useremail}
+extends layout
+
+block contents
+  h3 회원가입완료
+  p 가입한 회원 정보는 아래와 같습니다.
+  div
+    ul
+      li 이름 : #{username}
+      li 이메일 : #{useremail}
diff --git a/chapter-06/joinin/views/layout.jade b/chapter-06/joinin/views/layout.jade
index f2051cc..c89f4e8 100644
--- a/chapter-06/joinin/views/layout.jade
+++ b/chapter-06/joinin/views/layout.jade
@@ -1,7 +1,8 @@
-!!!
+doctype html
 html
   head
     title= title
     link(rel='stylesheet', href='/stylesheets/style.css')
     script(type='text/javascript', src='http://code.jquery.com/jquery-1.7.0.min.js')
-  body!= body
+  body
+    block contents
diff --git a/chapter-06/simpleweb/app.js b/chapter-06/simpleweb/app.js
index 7574676..4870393 100644
--- a/chapter-06/simpleweb/app.js
+++ b/chapter-06/simpleweb/app.js
@@ -4,9 +4,10 @@
  */
 
 var express = require('express')
+  , http = require('http')
   , routes = require('./routes')
 
-var app = module.exports = express.createServer();
+var app = module.exports = express();
 
 // Configuration
 
@@ -31,5 +32,7 @@ app.configure('production', function(){
 
 app.get('/', routes.index);
 
-app.listen(3000);
-console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);
+
+var server = http.createServer(app);
+server.listen(3000);
+console.log("Express server listening on port %d in %s mode", server.address().port, app.settings.env);
diff --git a/chapter-06/simpleweb/package.json b/chapter-06/simpleweb/package.json
index b2ea708..18ec444 100644
--- a/chapter-06/simpleweb/package.json
+++ b/chapter-06/simpleweb/package.json
@@ -3,7 +3,7 @@
   , "version": "0.0.1"
   , "private": true
   , "dependencies": {
-      "express": "~2.5.0"
+      "express": "~3.4.8"
     , "jade": ">= 0.0.1"
   }
 }
diff --git a/chapter-06/simpleweb/views/index.jade b/chapter-06/simpleweb/views/index.jade
index c9c35fa..dcf18da 100644
--- a/chapter-06/simpleweb/views/index.jade
+++ b/chapter-06/simpleweb/views/index.jade
@@ -1,2 +1,5 @@
-h1= title
-p Welcome to #{title}
\ No newline at end of file
+extends layout
+
+block contents
+  h1= title
+  p Welcome to #{title}
diff --git a/chapter-06/simpleweb/views/layout.jade b/chapter-06/simpleweb/views/layout.jade
index 1a36941..f63f45a 100644
--- a/chapter-06/simpleweb/views/layout.jade
+++ b/chapter-06/simpleweb/views/layout.jade
@@ -1,6 +1,7 @@
-!!!
+doctype html
 html
   head
     title= title
     link(rel='stylesheet', href='/stylesheets/style.css')
-  body!= body
\ No newline at end of file
+  body
+    block contents
diff --git a/chapter-07/connect/package.json b/chapter-07/connect/package.json
index e7b5138..c3d6952 100644
--- a/chapter-07/connect/package.json
+++ b/chapter-07/connect/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.1",
   "private": true,
   "dependencies": {
-    "socket.io": "0.8.7"
+    "socket.io": "0.9.16"
   },
   "devDependencies": {},
   "engines": {
diff --git a/chapter-07/connect/server.js b/chapter-07/connect/server.js
index 3abed2c..4f45f8c 100644
--- a/chapter-07/connect/server.js
+++ b/chapter-07/connect/server.js
@@ -6,7 +6,7 @@ var http = require('http')
 var server = http.createServer(function(req, res) {
   var filename = path.join(process.cwd(), req.url);
 
-  path.exists(filename, function(exists) {
+  fs.exists(filename, function(exists) {
     if(!exists) {
       res.writeHead(404, {"Content-Type": "text/plain"});
       res.write("404 Not Found\n");
diff --git a/chapter-07/custom-event/package.json b/chapter-07/custom-event/package.json
index e7b5138..c3d6952 100644
--- a/chapter-07/custom-event/package.json
+++ b/chapter-07/custom-event/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.1",
   "private": true,
   "dependencies": {
-    "socket.io": "0.8.7"
+    "socket.io": "0.9.16"
   },
   "devDependencies": {},
   "engines": {
diff --git a/chapter-07/custom-event/server.js b/chapter-07/custom-event/server.js
index 48d5b1b..9fbc38f 100644
--- a/chapter-07/custom-event/server.js
+++ b/chapter-07/custom-event/server.js
@@ -6,7 +6,7 @@ var http = require('http')
 var server = http.createServer(function(req, res) {
   var filename = path.join(process.cwd(), req.url);
 
-  path.exists(filename, function(exists) {
+  fs.exists(filename, function(exists) {
     if(!exists) {
       res.writeHead(404, {"Content-Type": "text/plain"});
       res.write("404 Not Found\n");
diff --git a/chapter-07/message/package.json b/chapter-07/message/package.json
index e7b5138..c3d6952 100644
--- a/chapter-07/message/package.json
+++ b/chapter-07/message/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.1",
   "private": true,
   "dependencies": {
-    "socket.io": "0.8.7"
+    "socket.io": "0.9.16"
   },
   "devDependencies": {},
   "engines": {
diff --git a/chapter-07/message/server.js b/chapter-07/message/server.js
index a78ed51..6fdbcf8 100644
--- a/chapter-07/message/server.js
+++ b/chapter-07/message/server.js
@@ -6,7 +6,7 @@ var http = require('http')
 var server = http.createServer(function(req, res) {
   var filename = path.join(process.cwd(), req.url);
 
-  path.exists(filename, function(exists) {
+  fs.exists(filename, function(exists) {
     if(!exists) {
       res.writeHead(404, {"Content-Type": "text/plain"});
       res.write("404 Not Found\n");
diff --git a/chapter-07/namespace/package.json b/chapter-07/namespace/package.json
index e7b5138..c3d6952 100644
--- a/chapter-07/namespace/package.json
+++ b/chapter-07/namespace/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.1",
   "private": true,
   "dependencies": {
-    "socket.io": "0.8.7"
+    "socket.io": "0.9.16"
   },
   "devDependencies": {},
   "engines": {
diff --git a/chapter-07/namespace/server.js b/chapter-07/namespace/server.js
index 1b03341..f66d13a 100644
--- a/chapter-07/namespace/server.js
+++ b/chapter-07/namespace/server.js
@@ -6,7 +6,7 @@ var http = require('http')
 var server = http.createServer(function(req, res) {
   var filename = path.join(process.cwd(), req.url);
 
-  path.exists(filename, function(exists) {
+  fs.exists(filename, function(exists) {
     if(!exists) {
       res.writeHead(404, {"Content-Type": "text/plain"});
       res.write("404 Not Found\n");
diff --git a/chapter-07/room/package.json b/chapter-07/room/package.json
index e7b5138..c3d6952 100644
--- a/chapter-07/room/package.json
+++ b/chapter-07/room/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.1",
   "private": true,
   "dependencies": {
-    "socket.io": "0.8.7"
+    "socket.io": "0.9.16"
   },
   "devDependencies": {},
   "engines": {
diff --git a/chapter-07/room/server.js b/chapter-07/room/server.js
index ad57dfa..715596a 100644
--- a/chapter-07/room/server.js
+++ b/chapter-07/room/server.js
@@ -6,7 +6,7 @@ var http = require('http')
 var server = http.createServer(function(req, res) {
   var filename = path.join(process.cwd(), req.url);
 
-  path.exists(filename, function(exists) {
+  fs.exists(filename, function(exists) {
     if(!exists) {
       res.writeHead(404, {"Content-Type": "text/plain"});
       res.write("404 Not Found\n");
diff --git a/chapter-07/volatile/package.json b/chapter-07/volatile/package.json
index e7b5138..c3d6952 100644
--- a/chapter-07/volatile/package.json
+++ b/chapter-07/volatile/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.1",
   "private": true,
   "dependencies": {
-    "socket.io": "0.8.7"
+    "socket.io": "0.9.16"
   },
   "devDependencies": {},
   "engines": {
diff --git a/chapter-07/volatile/server.js b/chapter-07/volatile/server.js
index 9e54010..beb044c 100644
--- a/chapter-07/volatile/server.js
+++ b/chapter-07/volatile/server.js
@@ -6,7 +6,7 @@ var http = require('http')
 var server = http.createServer(function(req, res) {
   var filename = path.join(process.cwd(), req.url);
 
-  path.exists(filename, function(exists) {
+  fs.exists(filename, function(exists) {
     if(!exists) {
       res.writeHead(404, {"Content-Type": "text/plain"});
       res.write("404 Not Found\n");
diff --git a/chapter-08/simple-chat/app.js b/chapter-08/simple-chat/app.js
index fd9bb1d..dcd004e 100644
--- a/chapter-08/simple-chat/app.js
+++ b/chapter-08/simple-chat/app.js
@@ -4,9 +4,10 @@
  */
 
 var express = require('express')
+  , http = require('http')
   , Chat = require('./chat');
 
-var app = module.exports = express.createServer();
+var app = module.exports = express();
 
 // Configuration
 
@@ -102,9 +103,10 @@ app.get('/join/:id', function(req, res) {
   });
 });
 
-app.listen(3000);
+var server = http.createServer(app);
+server.listen(3000);
 
 // Socket.io
-require('./rooms')(app);
+require('./rooms')(server);
 
-console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);
+console.log("Express server listening on port %d in %s mode", server.address().port, app.settings.env);
diff --git a/chapter-08/simple-chat/package.json b/chapter-08/simple-chat/package.json
index 46bdae1..9961bfd 100644
--- a/chapter-08/simple-chat/package.json
+++ b/chapter-08/simple-chat/package.json
@@ -3,8 +3,8 @@
   "version": "0.0.1",
   "private": true,
   "dependencies": {
-    "express": "~2.5.0",
+    "express": "~3.4.8",
     "jade": ">= 0.0.1",
-    "socket.io": "~0.8.7"
+    "socket.io": "~0.9.16"
   }
 }
diff --git a/chapter-08/simple-chat/views/enter.jade b/chapter-08/simple-chat/views/enter.jade
index 339a5d9..5216419 100644
--- a/chapter-08/simple-chat/views/enter.jade
+++ b/chapter-08/simple-chat/views/enter.jade
@@ -1,22 +1,25 @@
-- if (isSuccess)
-  h2 채팅방 목록
-  p #{nickname}님 환영합니다.
-  p 원하는 채팅방이 없으면 채팅방을 만드세요.
-    form(action='/makeRoom', method='POST')
-      label(for='roomname') 방제
-      input(type='text', id='roomname', name='roomname')
-      input(type='submit', value='방 만들기')
-  ul
-    each room in roomList
-      li= room
-        input(type='button', value='입장',
-              onclick='location.href=\'/join/' + room + '\'');
-- else
-  - if (nickname === '')
-    script(type='text/javascript')
-      alert('잘못된 닉네임입니다.');
-      history.go(-1);
+extends layout
+
+block contents
+  - if (isSuccess)
+    h2 채팅방 목록
+    p #{nickname}님 환영합니다.
+    p 원하는 채팅방이 없으면 채팅방을 만드세요.
+      form(action='/makeRoom', method='POST')
+        label(for='roomname') 방제
+        input(type='text', id='roomname', name='roomname')
+        input(type='submit', value='방 만들기')
+    ul
+      each room in roomList
+        li= room
+          input(type='button', value='입장',
+                onclick='location.href=\'/join/' + room + '\'')
   - else
-    script(type='text/javascript')
-      alert('사용중인 닉네임입니다.');
-      history.go(-1);
+    - if (nickname === '')
+      script(type='text/javascript').
+        alert('잘못된 닉네임입니다.');
+        history.go(-1);
+    - else
+      script(type='text/javascript').
+        alert('사용중인 닉네임입니다.');
+        history.go(-1);
diff --git a/chapter-08/simple-chat/views/index.jade b/chapter-08/simple-chat/views/index.jade
index 0c9f851..6afd757 100644
--- a/chapter-08/simple-chat/views/index.jade
+++ b/chapter-08/simple-chat/views/index.jade
@@ -1,15 +1,18 @@
-h2 채팅방
-form(action='/enter', method='POST')
-  label(for='nickname') 닉네임을 입력해 주세요.
-  input(type='text', id='nickname', name='nickname')
-  input(type='submit', value='입장')
+extends layout
 
-script(type='text/javascript')
-  $(document).ready(function() {
-    $('form').submit(function(e) {
-      if ($.trim($('#nickname').val()) === '') {
-        alert('닉네임을 입력해 주세요.');
-        return false;
-      }
+block contents
+  h2 채팅방
+  form(action='/enter', method='POST')
+    label(for='nickname') 닉네임을 입력해 주세요.
+    input(type='text', id='nickname', name='nickname')
+    input(type='submit', value='입장')
+
+  script(type='text/javascript').
+    $(document).ready(function() {
+      $('form').submit(function(e) {
+        if ($.trim($('#nickname').val()) === '') {
+          alert('닉네임을 입력해 주세요.');
+          return false;
+        }
+      });
     });
-  });
diff --git a/chapter-08/simple-chat/views/layout.jade b/chapter-08/simple-chat/views/layout.jade
index a0d407b..d885edf 100644
--- a/chapter-08/simple-chat/views/layout.jade
+++ b/chapter-08/simple-chat/views/layout.jade
@@ -1,8 +1,9 @@
-!!!
+doctype html
 html
   head
     title Simple Chat 
     link(rel='stylesheet', href='/stylesheets/style.css')
     script(type='text/javascript', src='/javascripts/jquery-1.7.0.min.js')
     script(type='text/javascript', src='/socket.io/socket.io.js')
-  body!= body
+  body
+    block contents
diff --git a/chapter-08/simple-chat/views/makeRoom.jade b/chapter-08/simple-chat/views/makeRoom.jade
index ce3fbf8..048217b 100644
--- a/chapter-08/simple-chat/views/makeRoom.jade
+++ b/chapter-08/simple-chat/views/makeRoom.jade
@@ -1,12 +1,15 @@
-- if (isSuccess)
-  script
-    alert('방이 만들어졌습니다.');
-    location.href = '/join/#{roomName}';
-- else if (roomName === '')
-  script
-    alert('방을 만들지 못했습니다.');
-    location.href = '/enter';
-- else
-  script
-    alert('이미 존재하는 방입니다.'); 
-    location.href = '/enter';
+extends layout
+
+block contents
+  - if (isSuccess)
+    script.
+      alert('방이 만들어졌습니다.');
+      location.href = '/join/#{roomName}';
+  - else if (roomName === '')
+    script.
+      alert('방을 만들지 못했습니다.');
+      location.href = '/enter';
+  - else
+    script.
+      alert('이미 존재하는 방입니다.'); 
+      location.href = '/enter';
diff --git a/chapter-08/simple-chat/views/room.jade b/chapter-08/simple-chat/views/room.jade
index 0de5592..24e5f23 100644
--- a/chapter-08/simple-chat/views/room.jade
+++ b/chapter-08/simple-chat/views/room.jade
@@ -1,70 +1,73 @@
-- if (!isSuccess)
-  script
-    alert('방에 입장할 수 없습니다.');
-    location.href = '/enter';
-- else
-  h3 방제 : 
-    span#roomName= roomName 
-    input#leave(type='button', value='나가기')
-  #chatWindow(style='width:400px; height:400px; overflow:auto; border:1px solid #000; float:left; margin-right:10px;')
-    
-  div(style='width:100px; height:400px; overflow:auto; border:1px solid #000;')
-    p 참가자
-    ul#attendants
-      each attendant in attendants
-        li(id='attendant-'+attendant)= attendant 
-  form
-    span#myName #{nickName}
-    input(type='text', style='width:300px;')#message
-    input(type='submit', value='보내기')
+extends layout
 
-  script(type='text/javascript')
-    $(document).ready(function() {
-      var room = io.connect('/room'); 
-      var chatWindow = $('#chatWindow');
-      var messageBox = $('#message');
-      var myName = $('#myName').text();
-      var attendants = $('#attendants');
-      var showMessage = function(msg) {
-        chatWindow.append($('<p>').text(msg));     
-        chatWindow.scrollTop(chatWindow.height());
-      };
+block contents
+  - if (!isSuccess)
+    script.
+      alert('방에 입장할 수 없습니다.');
+      location.href = '/enter';
+  - else
+    h3 방제 : 
+      span#roomName= roomName 
+      input#leave(type='button', value='나가기')
+    #chatWindow(style='width:400px; height:400px; overflow:auto; border:1px solid #000; float:left; margin-right:10px;')
+      
+    div(style='width:100px; height:400px; overflow:auto; border:1px solid #000;')
+      p 참가자
+      ul#attendants
+        each attendant in attendants
+          li(id='attendant-'+attendant)= attendant 
+    form
+      span#myName #{nickName}
+      input(type='text', style='width:300px;')#message
+      input(type='submit', value='보내기')
 
-      room.on('connect', function() {
-        room.emit('join', {roomName:$('#roomName').text(), nickName:myName}); 
-      });
+    script(type='text/javascript').
+      $(document).ready(function() {
+        var room = io.connect('/room'); 
+        var chatWindow = $('#chatWindow');
+        var messageBox = $('#message');
+        var myName = $('#myName').text();
+        var attendants = $('#attendants');
+        var showMessage = function(msg) {
+          chatWindow.append($('<p>').text(msg));     
+          chatWindow.scrollTop(chatWindow.height());
+        };
 
-      room.on('joined', function(data) {
-        if(data.isSuccess) {
-          showMessage(data.nickName + '님이 입장하셨습니다.');
-          attendants.append($('<li>')
-            .attr('id', 'attendant-'+data.nickName)
-            .text(data.nickName)); 
-        }
-      });
+        room.on('connect', function() {
+          room.emit('join', {roomName:$('#roomName').text(), nickName:myName}); 
+        });
 
-      room.on('message', function(data) {
-        showMessage(data.nickName + ' : ' + data.msg); 
-      });
+        room.on('joined', function(data) {
+          if(data.isSuccess) {
+            showMessage(data.nickName + '님이 입장하셨습니다.');
+            attendants.append($('<li>')
+              .attr('id', 'attendant-'+data.nickName)
+              .text(data.nickName)); 
+          }
+        });
 
-      room.on('leaved', function(data) {
-        showMessage(data.nickName + '님이 나가셨습니다.');
-        $('#attendant-'+data.nickName).remove();
-      });
+        room.on('message', function(data) {
+          showMessage(data.nickName + ' : ' + data.msg); 
+        });
 
-      $('form').submit(function(e) {
-        e.preventDefault();
-        var msg = messageBox.val();
-        if ($.trim(msg) !== '') {
-          showMessage(myName + ' : ' + msg);
-          room.json.send({nickName:myName, msg:msg});
-          messageBox.val('');
-        }
-      });
+        room.on('leaved', function(data) {
+          showMessage(data.nickName + '님이 나가셨습니다.');
+          $('#attendant-'+data.nickName).remove();
+        });
+
+        $('form').submit(function(e) {
+          e.preventDefault();
+          var msg = messageBox.val();
+          if ($.trim(msg) !== '') {
+            showMessage(myName + ' : ' + msg);
+            room.json.send({nickName:myName, msg:msg});
+            messageBox.val('');
+          }
+        });
 
-      $('#leave').click(function(e) {
-        room.emit('leave', {nickName:myName});
-        location.href='/enter';
+        $('#leave').click(function(e) {
+          room.emit('leave', {nickName:myName});
+          location.href='/enter';
+        });
       });
-    });
- 
+   
diff --git a/chapter-09/package.json b/chapter-09/package.json
index 12da08a..3b65911 100644
--- a/chapter-09/package.json
+++ b/chapter-09/package.json
@@ -9,7 +9,7 @@
     "node": "~0.4.10"
   },
   "dependencies": {
-    "clog": "0.0.2"
+    "clog": "0.1.6"
   },
   "devDependencies": {}
 }
diff --git a/chapter-10/simple-vows/package.json b/chapter-10/simple-vows/package.json
index af19113..f973488 100644
--- a/chapter-10/simple-vows/package.json
+++ b/chapter-10/simple-vows/package.json
@@ -9,7 +9,7 @@
     "node": "~0.4.12"
   },
   "dependencies": {
-    "vows": "~0.6.0"
+    "vows": "~0.7.0"
   },
   "devDependencies": {}
 }
diff --git a/chapter-10/webserver-expresso/package.json b/chapter-10/webserver-expresso/package.json
index 24bed78..3bcb354 100644
--- a/chapter-10/webserver-expresso/package.json
+++ b/chapter-10/webserver-expresso/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.1",
   "private": true,
   "dependencies": {
-    "express": "~2.4.7",
-    "jade": "~0.16.2"
+    "express": "~2.5.0",
+    "jade": ">= 0.0.1"
   }
 }
diff --git a/chapter-10/webserver-expresso/views/index.jade b/chapter-10/webserver-expresso/views/index.jade
index c9c35fa..dcf18da 100644
--- a/chapter-10/webserver-expresso/views/index.jade
+++ b/chapter-10/webserver-expresso/views/index.jade
@@ -1,2 +1,5 @@
-h1= title
-p Welcome to #{title}
\ No newline at end of file
+extends layout
+
+block contents
+  h1= title
+  p Welcome to #{title}
diff --git a/chapter-10/webserver-expresso/views/layout.jade b/chapter-10/webserver-expresso/views/layout.jade
index 1a36941..c104427 100644
--- a/chapter-10/webserver-expresso/views/layout.jade
+++ b/chapter-10/webserver-expresso/views/layout.jade
@@ -3,4 +3,5 @@ html
   head
     title= title
     link(rel='stylesheet', href='/stylesheets/style.css')
-  body!= body
\ No newline at end of file
+  body
+    block contents