Seven Unsolved Ciphers Inside the Mysterious Codes That Have Stymied the World's Greatest Cryptographers

Follow the horrific crimes of the Zodiac and see the symbol-filled letters he sent to local San Francisco newspapers. Could breaking his code lead to the arrest of this still-at-large serial killer? Learn how the Declaration of Independence was used to decode part of the Beale Papers. Find the decoder key for the rest of its cipher and a $30 million buried treasure awaits you somewhere in Buford County, Virginia. See how one man directly challenged the CIA by erecting an encoded sculpture called Kryptos at the agency's Langley headquarters-only to prove that his genius could resist the world's best code-breakers and most powerful decryption software. Book jacket.Belfield, Richard is the author of 'Seven Unsolved Ciphers Inside the Mysterious Codes That Have Stymied the World's Greatest Cryptographers', published 2007 under ISBN 9781569756287 and ISBN 1569756287.