Secret Wars: One Hundred Years of British Intelligence Inside MI5 and MI6

Gideon's Spies: Mossad's Secret Warriors

Gideon's Spies: The Secret History of the Mossad, Edition 7

Fatherland

Shadow Warriors: Daring Missions of World War II by Women of the OSS and SOE

Eye of the Needle

Defying Hitler: The Germans Who Resisted Nazi Rule

Sierra Six: The action-packed new Gray Man novel - now a major Netflix film

First Blood