First the ancient Greeks hid messages under their hair. Then Mary Queen of Scots completely lost her head because of a cracked toe. Now computers create codes no human can crack. "Totally Cracking Codes" is the ultimate guide to unlocking the secret language of spies. Aspiring code-breakers can discover how to decipher dot and dashes, fathom flags, suss a simple cipher and much more!
- ISBN10 1407114565
- ISBN13 9781407114569
- Publish Date 2 August 2010 (first published 14 November 2003)
- Publish Status Out of Print
- Out of Print 19 July 2013
- Publish Country GB
- Imprint Scholastic
- Format Paperback
- Pages 160
- Language English