Pick one of the codes from this page (don't pick code #4) and then write a paragraph or two on the following:

• pretend you're writing to someone who's never heard of the code you've chosen
• explain to that person how the code is set up
• explain how to break the code
• be sure to include an example to illustrate how to break the code
• include any hints or tricks you think are important to unlocking the code
• lastly, write out a short encrypted message using the code you've chosen; include the keyword if necessary (we'll see if someone can read your message using your instructions and coded message)
• put your name on it and turn it in