At Her Majestys Secret Service: The Chiefs of Britains Intelligence Service, MI6

100 Deadly Skills: The SEAL Operative's Guide to Eluding Pursuers, Evading Capture, and Surviving Any Dangerous Situation

Classified!: The Adventures of a Molehunter

Countdown to Zero Day: Stuxnet and the Launch of the World's First Digital Weapon

Historical Dictionary of British Intelligence: Edition 2

No Place to Hide: Edward Snowden, the NSA, and the U.S. Surveillance State

Encyclopedia of Political Assassinations

Imminent: Inside the Pentagon's Hunt for UFOs

Hitler's Trojan Horse: The Fall of the Abwehr, 1943–1945

Becoming Bulletproof: Life Lessons from a Secret Service Agent

Cold War Spymaster: The Legacy of Guy Liddell, Deputy Director of MI5

How to Break a Terrorist: The U.S. Interrogators Who Used Brains, Not Brutality, to Take Down the Deadliest Man in Iraq

Spies Who Changed History: The Greatest Spies & Agents of the 20th Century

The Way of the Knife: The CIA, a Secret Army, and a War at the Ends of the Earth

Spycraft Secrets: An Espionage A-Z

The Jakarta Method: Washington's Anticommunist Crusade and the Mass Murder Program that Shaped Our World

Historical Dictionary of Signals Intelligence

The Billion Dollar Spy: A True Story of Cold War Espionage and Betrayal

The A to Z of British Intelligence

100 Deadly Skills: Survival Edition: The SEAL Operative's Guide to Surviving in the Wild and Being Prepared for Any Disaster