Book of Codes: Understanding the World of Hidden Messages. Paul Lunde, ed. California, 2009.

Subtitled “An Illustrated Guide to Signs, Symbols, Ciphers, and Secret Languages.” Our copy is a hardback with dust jacket, both in excellent condition. Suitable for young adults and older, richly illustrated with photos and explanations and fully indexed. 10 1/2”h x 8 1/2”w x 1"d, 280 pp.