The Spy's Guide to Secret Codes and Ciphers

By H. Keith Melton and Jim Wiese

Spy University presents a fun way for young spies to learn all about secret codes and ciphers. Features: Loads of Codes; Spy Quest: The Case of the Writing on the Chalkboard; and 12 Spy Missions. This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 0439336406
• ISBN13: 9780439336406
• Release Date: October 2002
• Publisher: Scholastic
• Length: 48 Pages
• Weight: 0.35 lbs.