Alongside the main program MonkeyCrypt contains a small encyclopedia which can be accessed by pressing the Learn-button. You may choose the term you want to learn more about on the right side of the window. You are shown a text which explains the term in detail.

By pressing the Exercise-button which is located in the main program you are shown a variety of exercises to solve. Just insert your solution into the input field. You have the choice to either check your answer or directly view the sample solution.