Top Secret A Handbook of Codes, Ciphers and

"The author's upbeat, positive tone is refreshing and his enthusiasm about his topic is contagious." SCHOOL LIBRARY JOURNAL (starred review) Pssst! Do you know the difference between a code and a cipher? Can you tell a St. Cyr slide from a Cardano grille? Did you know that the discovery of a substitution cipher caused Mary Queen of Scots to lose her head? Don't look now, but packed into this practical field guide is everything a young person needs to know about the art of concealment - making and breaking codes, mastering cipher systems, and experimenting with secret writing. Offering plenty of hands-on practice sessions, tips for creating a code-making kit, sidebars on secret codes in history, and an amusing pair of spies to illustrate techniques, Paul B. Janeczko's tantalizing TOP SECRET won't stay a secret for long.

Introduction	p. 1
Codemaking	p. 5
Nonsecret Codes	p. 8
Secret Codes	p. 12
Book Code	p. 19
Dictionary Code	p. 20
Codetalking	p. 22
Pig Latin	p. 23
Turkish Irish	p. 24
Ciphers	p. 25
Caesar Cipher	p. 27
St. Cyr Slide	p. 28
Keyboard Cipher	p. 34
Morse Code	p. 36
Semaphore	p. 38
Pigpen Cipher	p. 41
Rosicrucian Cipher	p. 42
Date Shift Cipher	p. 46
Greek Square Cipher	p. 48
Greek Skytale	p. 52
Rail Fence Cipher	p. 54
Route Transposition Cipher	p. 57
Codebreaking	p. 61
Concealment	p. 79
Early Concealment Techniques	p. 79
Null Cipher	p. 82
Cardano Grille	p. 87
Word Grille	p. 96
Space Code	p. 105
Playing Card Code	p. 106
Dot Cipher	p. 108
Line Cipher	p. 111
Zigzag Cipher	p. 112
Invisible Inks	p. 115
Codemakers and Codebreakers Hall of Fame	p. 125
Some Books to Read	p. 129
A Few Final Words	p. 131
Answer Pages	p. 132
Index	p. 135
Table of Contents provided by Ingram. All Rights Reserved.

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Top Secret A Handbook of Codes, Ciphers and Secret Writing

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Table of Contents

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