Shhh....
This page is TOP SECRET!

Have you ever wanted to send a message to a friend that no one else could read? Do you want to learn more about what it takes to be a spy? Learn about secret forms of communication such as secret codes and ciphers.

Follow these links to learn how to send your own secret messages and to learn about spies, bugs, taps, and more.

Code and Cipher Basics	Spies	Bugs, Taps and Surveillance	The Enigma Machine
Invisible Ink	Morse Code Cipher	Picture Cipher	Transposition Ciphers
Pig Pen Cipher	Hand Signal Code	American Sign Language Code	Jefferson's Wheel Cipher
Substitute Cipher	Alberti Cipher Wheels	The Scytale Cipher	Grid Cipher