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The Secret World of Spies
Spy Codes and Ciphers
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.
48 pages, ebook
First published October 1, 2011
7 people want to read
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Displaying 1 - 2 of 2 reviews
August 12, 2022
My child was looking for more information on the Engima Machine from WWII and came across this book at the local library. ITs informative, but very dry. Also, this book covers such a wide timeline of codes/ciphers that it doesn't go into much detail on any of them. But, still works as an age-appropriate introduction for kids interested in spy craft.
February 15, 2019
The Boy Scouts' Butterfly Watcher spy, Alan Turning among others show off cool people in the Spy World, and how it was developed and used, mostly for military and War secret communication....
not as exciting as you think it would be....
not as exciting as you think it would be....
Displaying 1 - 2 of 2 reviews