Decipher (The Greatest Codes Ever Invented and How to Break Them) - Mark Frary

Codes win wars, conceal state secrets, protect privacy, secure banks and transmit messages. Through 45 of the world’s most influential codes and ciphers, DECIPHER presents a compelling insight into the art and science of cryptography. Structured chronologically, DECIPHER provides practical tools for understanding and using these fascinating codes and ciphers. It features a diverse range of codes, including the Caesar shift cipher, Easter Island’s bewildering Rongorongo and the famous Enigma code. DECIPHER also includes features on famous codebreakers of history such as Alan Turing, Jonas Nordby and Auguste Kerckhoffs, providing a comprehensive overview to this beguiling, secretive world.