Codes, Ciphers and Secret Writing

Codes, Ciphers and Secret Writing

Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks . . . even invisible writing and sending messages through space. 45 diagrams.

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Book Details  


Publisher: Dover Publications (March 13, 2013)

Collection: Dover Children's Activity Books

Parent ISBN: 9780486247618

Page count: 96 pages

Language: English


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