Elliot Carlson's biography of Capt. Joe Rochefort is the first to be written of the officer who headed the U.S. Navy's decrypt unit at Pearl Harbor and broke the Japanese Navy's code before the Battle of Midway. The book brings Rochefort to life as the irreverent, fiercely independent, and consequential officer that he was. Readers share his frustrations as he searches in vain for Yamamoto's fleet prior to the Japanese attack on Pearl Harbor, but...

Traces the life of Elizebeth Smith, who met and married groundbreaking cryptologist William Friedman and worked with him to discover and expose Nazi spy rings in South America by cracking multiple versions of the Enigma machine. "In 1916, a young Quaker schoolteacher and poetry scholar named Elizebeth Smith was hired by an eccentric tycoon to find the secret messages he believed were embedded in Shakespeare's plays. She moved to the tycoon's lavish...