The Secret Listeners: The Men and Women Posted Across the World to Intercept the German Codes for Bletchley Park

The Secret Life of Bletchley Park: The WWII Codebreaking Centre and the Men and Women Who Worked There

The Hut Six Story: Breaking the Enigma Codes

The Secret Lives of Codebreakers: The Men and Women Who Cracked the Enigma Code at Bletchley Park

The Secrets of Station X: The Fight to Break the Enigma Cypher (Dialogue Espionage Classics)

My Secret Life in Hut Six: One Woman's Experiences at Bletchley Park

Battle Of Wits: The Complete Story of Codebreaking in World War II

Code Warriors: NSA's Codebreakers and the Secret Intelligence War Against the Soviet Union

The Lost World of Bletchley Park: The Illustrated History of the Wartime Codebreaking Centre

Rogue Heroes: The History of the SAS, Britain's Secret Special Forces Unit That Sabotaged the Nazis and Changed the Nature of War

Most Secret War (Wordsworth Military Library)