The Code Book: How to Make It, Break It, Hack It, Crack It
Provides a review of cryptography, its evolution over time, and its purpose throughout history from the era of Julius Caesar to the modern day.
Simon Singh is the bestselling author of Fermat's Enigma, The Code Book, Big Bang, Trick or Treatment?: Alternative Medicine on Trial, and The Simpsons and Their Mathematical Secrets. He lives in London.