A Handbook of Codes, Ciphers, and Secret WritingBook - 2006
Presents a guide to codemaking, codebreaking, and their role in history, describing different types of codes and ciphers, discussing codebreaking and concealment techniques, and including brief stories about exciting moments in the history of the art.
Publisher: Cambridge, Mass. : Candlewick Press, 2006, c2004.
Characteristics: 136 p. :,ill. ;,23 cm.