Algorithm-box
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@@ -50,6 +50,7 @@ Table of Contents
    virtual_environment
    collections
    enumerate
+   zip
    object_introspection
    comprehensions
    exceptions
 
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+Zip and unzip
+-------------
+
+**Zip**
+
+Zip is a useful function that allows you to combine two lists easily. 
+
+After calling zip, an iterator is returned. In order to see the content wrapped inside, we need to first convert it to a list.
+
+Example:
+
+.. code:: python
+    
+    first_name = ['Joe','Earnst','Thomas','Martin','Charles']
+
+    last_name = ['Schmoe','Ehlmann','Fischer','Walter','Rogan','Green']
+
+    age = [23, 65, 11, 36, 83]
+
+    print(list(zip(first_name,last_name, age)))
+
+    # Output
+    #
+    # [('Joe', 'Schmoe', 23), ('Earnst', 'Ehlmann', 65), ('Thomas', 'Fischer', 11), ('Martin', 'Walter', 36), ('Charles', 'Rogan', 83)]
+
+One advantage of zip is that it improves readability of for loops.
+
+For example, instead of needing multiple inputs, you only need one zipped list for the following for loop:
+
+.. code:: python
+
+    first_name = ['Joe','Earnst','Thomas','Martin','Charles']
+    last_name = ['Schmoe','Ehlmann','Fischer','Walter','Rogan','Green']
+    age = [23, 65, 11, 36, 83]
+
+    for first_name, last_name, age in zip(first_name, last_name, age):
+        print(f"{first_name} {last_name} is {age} years old")
+
+    # Output
+    #
+    # Joe Schmoe is 23 years old                                                                                                                    
+    # Earnst Ehlmann is 65 years old                                                                                                                
+    # Thomas Fischer is 11 years old                                                                                                                
+    # Martin Walter is 36 years old                                                                                                                 
+    # Charles Rogan is 83 years old
+    
+**Unzip**
+
+We can use the `zip` function to unzip a list as well. This time, we need an input of a list with an asterisk before it.
+
+The outputs are the separated lists. 
+
+Example:
+
+.. code:: python
+
+    full_name_list = [('Joe', 'Schmoe', 23), 
+                      ('Earnst', 'Ehlmann', 65), 
+                      ('Thomas', 'Fischer', 11), 
+                      ('Martin', 'Walter', 36), 
+                      ('Charles', 'Rogan', 83)]
+                      
+    first_name, last_name, age = list(zip(*full_name_list))
+    print(f"first name: {first_name}\nlast name: {last_name} \nage: {age}")
+
+    # Output
+
+    # first name: ('Joe', 'Earnst', 'Thomas', 'Martin', 'Charles')
+    # last name: ('Schmoe', 'Ehlmann', 'Fischer', 'Walter', 'Rogan')
+    # age: (23, 65, 11, 36, 83)
+