TY  - BOOK
AU  - Gilbert,Adrian
TI  - Codes and ciphers
T2  - Spy files
SN  - 9781595665942 (lib. bdg.)
AV  - Z103.3 .G55 2008
U1  - 652/.8 22
PY  - 2008///
CY  - Laguna Hills, CA
PB  - QEB Pub.
KW  - Ciphers
KW  - Juvenile literature
KW  - Cryptography
KW  - sears
N1  - 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; 5.9; Follett Library Resources; 3-6; Follett Library Resources
N2  - 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
ER  -