Codes and Ciphers (Collins Need to Know?)

By Sean Callery

Book Overview

Everything from smoke signals to military encryption devicesCodes and Ciphers reveals the development and role of secret communications throughout history and offers practical advice on how to make... This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 0007228031
• ISBN13: 9780007228034
• Release Date: July 2006
• Publisher: Collins
• Length: 191 Pages
• Weight: 0.65 lbs.
• Dimensions: 8.3" x 0.5" x 5.8"