Secret Codes Ciphers
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Writing Secret Codes and Sending Hidden Messages
Author: Gyles Daubeney Brandreth
language: en
Publisher: Sterling Publishing (NY)
Release Date: 1984
Explains how to use secret codes, including Morse, Caesar's, Sandwich, Rosicrucian, and others, as well as how to send hidden messages using invisible ink, how to take fingerprints, and other tricks and techniques.
The Kids' Book of Secret Codes, Signals, and Ciphers
Discusses the history and different varieties of codes and ciphers, describing code machines, signals, sign language, picture languages, and hidden messages.
Secret Codes and Ciphers
Describes famous cases involving codes and ciphers, explains different ciphers, and tells how to create your own.