Wrixon, Fred B

Codes, ciphers & other cryptic & clandestine communication : making and breaking secret messages from hieroglyphs to the Internet by Fred B. Wrixon - New York Black Dog & Leventhal Paperbacks 2005 - 704 p. : ill. ; 20 cm

Cover title: Codes, ciphers, secrets and cryptic communication

9781579124854


Codes
Geometric Ciphers

652.8 WRI