Codes & Secret Writing
Language: en
Pages: 115
Authors: Herbert Spencer Zim
Categories: Cryptography
Type: BOOK - Published: 1970 - Publisher:

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A how-to book for creating and deciphering codes.
Codes, Ciphers and Secret Writing
Language: en
Pages: 100
Authors: Martin Gardner
Categories: Juvenile Nonfiction
Type: BOOK - Published: 1984-01-01 - Publisher: Courier Corporation

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Explains various methods used in cryptography and presents examples to help readers in breaking secret codes
Top Secret
Language: en
Pages: 148
Authors: Paul B. Janeczko
Categories: Juvenile Nonfiction
Type: BOOK - Published: 2006-04-11 - Publisher: Candlewick Press

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Presents history, trivia, and code-breaking tales in a guide book to the world of secret writing that includes examples of a variety of codes and ciphers.
Codes and Secret Writing
Language: en
Pages: 124
Authors: Herbert Spencer Zim
Categories: Ciphers
Type: BOOK - Published: 1948 - Publisher:

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Explains how to make and break several kinds of codes, how to use secret languages and how to make invisible inks.
Codes and Ciphers
Language: en
Pages: 160
Authors: John Laffin
Categories: Business & Economics
Type: BOOK - Published: 1964 - Publisher: HarperCollins Children's Books

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An explanation of the development, methods, and use of cryptography throughout history.