The magnificent, unrivaled history of codes and ciphers -- how they're made, how they're broken, and the many and fascinating roles they've played since the daw

The story of Bletchley Park, the successful intelligence operation that cracked Germany's Enigma Code. Photos.

A Best Book of 2021 by Bloomberg BusinessWeek, Time, and The Washington Post The bestselling author of Leonardo da Vinci and Steve Jobs returns with a “compel

Three years into the Great War, England's greatest asset is their intelligence network--field agents risking their lives to gather information, and codebreakers

In Code Warriors, Stephen Budiansky--a longtime expert in cryptology--tells the fascinating story of how NSA came to be, from its roots in World War II through