WRIXON, FRED B. — Codes, Ciphers, and Secret Languages

Nearly A4 dark spine hard to read garage W, Guild Publishing. 1989. (ISBN: 9780517657041). Hardcover. Hardback with dustjacket - 1987 - good condition Subject: Intelligence, Espionage, Reconnaissance & Electronic Warfare. A journey through time from ancient Egypt through th intrigue of Elizabethan England, the American civil war to the cold war.The author explains how to read the codes of Napoleon, Marie Antoinette and how they can be used. At the end of each section is a series of tests and brain teasers to test your understanding of th epreceeding section.Polybius Checkerboard, the Porta disc,l'Ehphees alphabet, morse code, esperanto and many others are explained and used. Used: Acceptable.