The Code Book The Science of Secrecy from Ancient Egypt to Quantum Cryptography

"It would be hard to imagine a clearer or more fascinating presentation. . . . Mr. Singh gives cryptography not only its historical dimension but its human one." --The New York Times

"Entertaining and satisfying. . . . Offers a fascinating glimpse into the mostly secret competition between codemakers and codebreakers."        --USA Today
  
"A good read that, bless it, makes the reader feel a bit smarter when it's done. Singh's an elegant writer and well-suited to the task of leading the mathematically perplexed through areas designed to be tricky."        --Seattle Weekly
  
"An absorbing tale of codemaking and codebreaking over the centuries." --Scientific American

"Singh spins tales of cryptic intrigue in every chapter." --The Wall Street Journal

"Brings together...the geniuses who have secured communications, saved lives, and influenced the fate of nations. A pleasure to read." --Chicago Tribune

"Enthralling...commendably lucid...[Singh's] book provides a timely and entertaining summary of the subject." --The Economist