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touching personal journeys
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DECIPHER: The Greatest Codes Ever Invented and How to Break Them touching personal journeysMark Frary reveals the secret history of codes in this timely and captivating reference book. From ancient transposition ciphers to steganography and computerised methods designed by codebreakers including Alan Turing, this book provides a detailed overview of 45 of the world's most important codes and ciphers. This endlessly interesting book will appeal to anyone who loves science, puzzles, numbers and linguistics. It describes each discovery and
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