Codes and Hidden Messaging

How to
Decipher a Secret Code

How to
Create a Stacked Cipher

How to
Encode and Decode Using the Vigènere Cipher

How to
Use Constrained Writing to Send a Secret Message

How to
Write in Skip a Letter Code

How to
Create Easy and Tough to Break Substitution Codes

How to
Create Secret Codes and Ciphers

How to
Decode a Caesar Box Code

How to
Decrypt Messages with a Numeric One Time Pad

How to
Encode and Decode Using a Bible Cipher

How to
Encrypt Messages with a Numeric One Time Pad

How to
Detect Alphaparallel Letters

How to
Encrypt Your Journal or Diary

How to
Encrypt Messages with an Alphabetic One Time Pad

How to
Make a Code Wheel

How to
Make a Phonic Code

How to
Make a Tricky Code

How to
Make Your Own Secret Language

How to
Use the Dictionary Code

How to
Write a Confusing Code

How to
Write an Unbreakable Code

How to
Write in Pigpen Code

How to
Write in Telephone Code

How to
Write in Code

How to
Write in Tri Code