This illustrated encyclopedia surveys the history and development of code-making and code-breaking in all areas of culture and society from hieroglyphs and rune
J Richard Knapp's best selling fictional story, Book of Codes, is the first great adventure of Sam (Samantha) and her twin brother, Nick. Follow the twins as th
This vintage book contains Alexander D’Agapeyeff’s famous 1939 work, Codes and Ciphers - A History of Cryptography. Cryptography is the employment of codes
Global in its scope, this book explores the history and mystery of coded information and how it has been harnessed. The book includes hundreds of photographs of