Gilbert, Adrian.

Codes and ciphers / Adrian Gilbert. - Laguna Hills, CA : QEB Pub., c2008. - 32 p. : ill. (some col.) ; 31 cm. - Spy files . - Gilbert, Adrian. Spy files. .

Includes index.

Codes and ciphers -- The Caesar cipher -- Code breaking -- Morse code -- Visual codes -- Navajo code talkers -- One-time pads -- Cipher machines -- Purple intelligence -- Enigma -- Secret writing -- Microdots -- Radio communications.

Discusses the difference between codes and ciphers, examines common codes and ciphers that have been used during wars, and explains how to create simple ciphers.

5.9 Follett Library Resources. 3-6 Follett Library Resources.

9781595665942 (lib. bdg.) 1595665943

2008010029


Ciphers--Juvenile literature.
Cryptography--Juvenile literature.
Ciphers.
Cryptography.
Ciphers.
Cryptography.
Ciphers.
Cryptography.

Z103.3 / .G55 2008

652/.8