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Secret Messages: A Collection of Puzzles Using Codes and Ciphers - Couverture souple

Hawtin, J.C.

 
9780906212783: Secret Messages: A Collection of Puzzles Using Codes and Ciphers

Synopsis

A light-hearted dash through the history of cryptography with messages, jokes and riddles to encipher and decipher. In addition, there are ingenious gadgets to make which help with the solutions to some of the puzzles.

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