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Codes, Ciphers and Secret Writing (Test Your Code Breaking Skills)
Codes Ciphers and Secret Writing - Test Your Code Breaking Skills
Author: Martin Gardner
Experiment with cryptography—the science of 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 outer space. Hours of intrigue and challenge. 45 diagr...  more »
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ISBN-13: 9780486247618
ISBN-10: 0486247619
Publication Date: 10/1/1984
Pages: 96
Rating:
  • Currently 2.5/5 Stars.
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2.5 stars, based on 1 rating
Publisher: Dover Publications
Book Type: Paperback
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