diff --git a/guess.py b/guess.py
old mode 100644
new mode 100755
index 3a28086..8fb3b11
--- a/guess.py
+++ b/guess.py
@@ -1,3 +1,5 @@
+#!/usr/bin/python3
+
 import random
 
 
@@ -7,11 +9,10 @@
 print('Hello! What is your name?')
 name = input()
 
-print("Hi, {}. I'm thinking of a number from 1 and 20.".format(name)) 
+print(f"Hi, {name}. I'm thinking of a number from 1 and 20.")
 
 while guesses < 6:
-
-    print('What is your guess. You have {} more guesses.'.format(6-guesses))
+    print(f'What is your guess? You have {6 - guesses} more guesses.')
     guess = input()
     guess = int(guess)
 
@@ -22,8 +23,8 @@
     elif guess > number:
         print('Too high.')
     elif guess == number:
-        print('Good job, {}! You guessed my number in {} guesses!'.format(name,guesses))
+        print(f'Good job, {name}! You guessed my number in {guesses} guesses!')
         break
 
 if guess != number:
-    print('Nope. The number I was thinking of was {}.'.format(number))
+    print(f'Nope. The number I was thinking of was {number}.')
diff --git a/guess.rb b/guess.rb
old mode 100644
new mode 100755
index 18a7c52..f15c2dc
--- a/guess.rb
+++ b/guess.rb
@@ -1,30 +1,22 @@
+#!/usr/bin/env ruby
+
 number = rand(1..20)
-guesses = 0
 
 puts 'Hello! What is your name?'
-name = gets.chomp.to_s
-
-puts "Hi, #{name}. I'm thinking of a number between 1 and 20." 
+name = gets&.chomp
 
-while guesses < 6
+puts "Hi, #{name}. I'm thinking of a number between 1 and 20."
 
-  puts "What is your guess? You have #{6-guesses} more guesses."
-  guess = gets.chomp.to_i
-  guesses += 1
+1.upto 6 do |guesses|
+  puts "What is your guess? You have #{7 - guesses} more guesses."
+  guess = gets&.chomp.to_i
 
-  unless guess == number
-    message = if guess > number
-                "Too high"
-              else
-                "Too low"
-              end
-    puts message
-  else
+  if guess == number
     puts "Good job, #{name}! You guessed my number in #{guesses} guesses."
     exit
+  else
+    puts(guess > number ? 'Too high' : 'Too low')
   end
-
 end
 
 puts "Nope. The number I was thinking of was #{number}."
-
diff --git a/readme.md b/readme.md
index fd086db..f281cd9 100644
--- a/readme.md
+++ b/readme.md
@@ -152,7 +152,7 @@ The difference is that there is one right way of doing this given the situation.
 
 ### More differences
 
-As you can imagine, there are many more differences that just the syntax and philosophies of the two languages. Let's quickly look at some examples.
+As you can imagine, there are many more differences than just the syntax and philosophies of the two languages. Let's quickly look at some examples.
 
 #### Learning Curve
 
@@ -208,6 +208,11 @@ The Python community is active, vibrant, and truly helpful. Although you can say
 
 #### Popularity/Jobs
 
+![popularity](https://static1.squarespace.com/static/51361f2fe4b0f24e710af7ae/t/56b1187d4c2f85efc5598bb1/1454446752995/?format=750w)
+
+Source: http://blog.codeeval.com/codeevalblog/2016/2/2/most-popular-coding-languages-of-2016
+
+
 ![popularity](https://raw.github.com/mjhea0/python-ruby/master/images/codeeval2015.jpg)
 
 For the fourth year in a row, Python is the most popular language. Also, notice how Ruby decreased in popularity:
@@ -250,11 +255,10 @@ guesses = 0
 print('Hello! What is your name?')
 name = input()
 
-print("Hi, {}. I'm thinking of a number from 1 and 20.".format(name))
+print(f"Hi, {name}. I'm thinking of a number from 1 and 20.")
 
 while guesses < 6:
-
-    print('What is your guess. You have {} more guesses.'.format(6-guesses))
+    print(f'What is your guess? You have {6 - guesses} more guesses.')
     guess = input()
     guess = int(guess)
 
@@ -265,42 +269,33 @@ while guesses < 6:
     elif guess > number:
         print('Too high.')
     elif guess == number:
-        print('Good job, {}! You guessed my number in {} guesses!'.format(name,guesses))
+        print(f'Good job, {name}! You guessed my number in {guesses} guesses!')
         break
 
 if guess != number:
-    print('Nope. The number I was thinking of was {}.'.format(number))
+    print(f'Nope. The number I was thinking of was {number}.')
 ```
 
 #### Ruby
 
 ```ruby
 number = rand(1..20)
-guesses = 0
 
 puts 'Hello! What is your name?'
-name = gets.chomp.to_s
+name = gets&.chomp
 
 puts "Hi, #{name}. I'm thinking of a number between 1 and 20."
 
-while guesses < 6
+1.upto 6 do |guesses|
+  puts "What is your guess? You have #{7 - guesses} more guesses."
+  guess = gets&.chomp.to_i
 
-  puts "What is your guess? You have #{6-guesses} more guesses."
-  guess = gets.chomp.to_i
-  guesses += 1
-
-  unless guess == number
-    message = if guess > number
-                "Too high"
-              else
-                "Too low"
-              end
-    puts message
-  else
+  if guess == number
     puts "Good job, #{name}! You guessed my number in #{guesses} guesses."
     exit
+  else
+    puts(guess > number ? 'Too high' : 'Too low')
   end
-
 end
 
 puts "Nope. The number I was thinking of was #{number}."