Codes, Ciphers and Secret Writing by Martin Gardner: Book Cover

    Codes, Ciphers and Secret Writing by Martin Gardner

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    (Paperback)

    • Pub. Date: October 1984
    • 96pp
    • Sales Rank: 47,082

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      Product Details

      • Pub. Date: October 1984
      • Publisher: Dover Publications
      • Format: Paperback, 96pp
      • Sales Rank: 47,082

      Synopsis

      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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