Cracking Codes (Totally)

by Mike Phillips (Illustrator), Diana Kimpton (Author)

• Used

  Paperback
  2010

  $3.25

  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!