List Books » Codes, Ciphers and Secret Writing
Authors: Martin Gardner ISBN-13: 9780486247618, ISBN-10: 0486247619
Format: Paperback Publisher: Dover Publications
Date Published: October 1984 Edition: (Non-applicable)
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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