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Spy Codes and Ciphers (The Secret World of Spies)
Susan K. Mitchell
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Spy Codes and Ciphers (The Secret World of Spies)
Susan K. Mitchell
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.
| Media | Books Paperback Book (Book with soft cover and glued back) |
| Released | January 16, 2012 |
| ISBN13 | 9781598453539 |
| Publishers | Enslow Pub Inc |
| Pages | 48 |
| Dimensions | 188 × 225 × 3 mm · 127 g |
| Language | English |
See all of Susan K. Mitchell ( e.g. Hardcover Book and Paperback Book )