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Codes and Ciphers: Secret Writing Through the Ages
Codes and Ciphers Secret Writing Through the Ages Author:Jon Laffin Secret Writing — The code word that issued in the dawn of D-Day . . . — The fantastic discovery of the true identity of the "Man in the Iron Mask" . . . — The cloak-and-dagger techniques governments use to decipher other country's codes . . . — Stories about how secret writing was used in ancient Greece and Rome, in medieval Italy, in the American C... more »ivil War, in World Wars I and II - they're all in Codes and Ciphers.
This simple, comprehensive history is packed with fascination for every reader. Author John Laffin gives step-by-step techniques for using just about every kind of code and cipher -- from the very simple to the highly complex. And, as a test of your wits, he not only shows how to break a cryptogram but provides samples to challenge your skill.« less