diff --git a/beginner_python/06-loop-basics.py b/beginner_python/06-loop-basics.py
index 643d310..b46c060 100644
--- a/beginner_python/06-loop-basics.py
+++ b/beginner_python/06-loop-basics.py
@@ -5,7 +5,7 @@
 for x in languages:
     print(x)
 
-#The body of this loop (the indented part) will run 4 times
+#The body of this loop (the indented part) will run 3 times
 #Each time is known as an iteration
 #Each iteration, the variable x will contain one element
 #iteration 1 will be the first element
diff --git a/python/08-oop-basics.py b/python/08-oop-basics.py
index eb1956d..cd7ce31 100644
--- a/python/08-oop-basics.py
+++ b/python/08-oop-basics.py
@@ -87,7 +87,7 @@ def log(self):
 
     def is_short(self):
         if self.pages < 100:
-            return true
+            return True
 
 book = Book("Are You My Mother?", 72)
 book.log() #no need to pass anything to self parameter. 
@@ -110,7 +110,7 @@ def is_short(self):
 
 def book_is_short(book):
     if book.pages < 100:
-        return true
+        return True
 
 if book_is_short(book):
     #do something
@@ -151,7 +151,7 @@ def log(self):
 
     def is_short(self):
         if self.pages < 100:
-            return true
+            return True
 
 
 book = Book("Are You My Mother?", 72)
@@ -179,8 +179,7 @@ def __init__(self, title, pages):
         self.pages = pages
 
     def is_short(self):
-        if self.pages < 100:
-            return true
+        return self.pages < 100
 
     #What happens when you pass object to print?
     def __str__(self):
@@ -188,8 +187,7 @@ def __str__(self):
 
     #What happens when you use ==?
     def __eq__(self, other):
-        if(self.title == other.title and self.pages == other.pages):
-            return True
+        return self.title == other.title and self.pages == other.pages
     
     #It's approriate to give something for __hash__ when you override __eq__
     # #This is the recommended way if mutable (like it is here):
@@ -197,20 +195,14 @@ def __eq__(self, other):
 
     #If should immutable, you could do something like this. 
     #This replaces __hash__ = None
-    def __hash__(self):
-        return hash(self.title) ^ hash(self.pages) #xor with hash of attributes
-        #from Mastering Object-Oriented Python
+    # def __hash__(self):
+    #     return hash(self.title) ^ hash(self.pages) #xor with hash of attributes
+    #     #from Mastering Object-Oriented Python
 
 book = Book("Are You My Mother", 72)
-print(book)
 equal_book = Book("Are You My Mother", 72)
 print("Are they considered equal?", book == equal_book) #yep
 print("Are they the same object?", book is equal_book) #nope
 book2 = Book("The Digging-est Dog", 72)
 
-print(hash(book), hash(book2))
-
-print("old hash", hash(book))
-book.title = "new"
-print("new hash", hash(book)) #BAD!!! 
-#Hashes shouldn't change
\ No newline at end of file
+print(hash(book), hash(book2))
\ No newline at end of file
diff --git a/python/09-objects-io.py b/python/09-objects-io.py
index 029fc80..dbab3b6 100644
--- a/python/09-objects-io.py
+++ b/python/09-objects-io.py
@@ -6,8 +6,7 @@ def __init__(self, title, pages):
         self.pages = pages
 
     def is_short(self):
-        if self.pages < 100:
-            return true
+        return self.pages < 100
 
     #What happens when you pass object to print?
     def __str__(self):
@@ -15,8 +14,7 @@ def __str__(self):
 
     #What happens when you use ==?
     def __eq__(self, other):
-        if(self.title == other.title and self.pages == other.pages):
-            return True
+        return self.title == other.title and self.pages == other.pages
     
     #It's approriate to give something for __hash__ when you override __eq__
     # #This is the recommended way if mutable (like it is here):
diff --git a/python/book.py b/python/book.py
index 6df242a..0e89f6e 100644
--- a/python/book.py
+++ b/python/book.py
@@ -1,25 +1,20 @@
 class Book():
-    favs = [] #class
+    favs = []
 
     def __init__(self, title, pages):
         self.title = title
         self.pages = pages
 
     def is_short(self):
-        if self.pages < 100:
-            return true
+        return self.pages < 100
 
-    #What happens when you pass object to print?
     def __str__(self):
         return f"{self.title}, {self.pages} pages long"
 
-    #What happens when you use ==?
     def __eq__(self, other):
-        if(self.title == other.title and self.pages == other.pages):
-            return True
+        return self.title == other.title and self.pages == other.pages
+            
     
-    #It's approriate to give something for __hash__ when you override __eq__
-    # #This is the recommended way if mutable (like it is here):
     __hash__ = None
 
     def __repr__(self): #added to make list of items invoke str