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Loads of codes and secret ciphersPaul B. Janeczko
Cover of Loads of codes and secret ciphers

Loads of codes and secret ciphers

by Paul B. Janeczko

1981 · 112 pages

  • juvenile literature
  • cryptography
  • ciphers

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About this book

Discusses and provides practice in making and breaking codes and ciphers, as well as in building simple coding devices to transmit secret messages.

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