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Spy Codes and Ciphers

Spy Codes and Ciphers - Secret World of Spies

Paperback (16 Jan 2012)

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Publisher's Synopsis

Can flashing lights send out a secret message? Did a famous spy use sketches of butterflies to hide messages? Can a digital photo hide a secret code? For centuries, spies have used many different ways to pass secret information. Codes and ciphers keep information safe from the enemy. Author Susan K. Mitchell uncovers the secrets to the amazing world of spy codes and ciphers.

Book information

ISBN: 9781598453539
Publisher: Enslow Publishers
Imprint: Enslow Publishing
Pub date:
DEWEY: 652.8
Language: English
Number of pages: 48
Weight: 127g
Height: 225mm
Width: 188mm
Spine width: 3mm