Download or read book Cracking Codes written by Diana Kimpton and published by . This book was released on 2010-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the centuries people have created codes they hoped others would never crack - now computers can do this. This revealing guide gives you the key to unlock the secret languages of spies. Get on the case to discover how to decipher dots and dashes, fathom flags, and suss a simple cipher.