How to make it, break it, hack it, crack it.The secret history of codes and code breaking.Simon Singh’s best-selling title The Code Book now re-issued for the young-adult market.The Science of Secrecy from Ancient Egypt to Quantum Cryptography.Simon Singh brings life to an amazing story of puzzles, codes, languages and riddles – revealing the continual pursuit to disguise and uncover, and to work out the secret languages of others.Codes have influenced events throughout history, both in the stories of those who make them and those who break them.