Historical Dictionary of Air Intelligence

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

Historical Dictionary of Middle Eastern Intelligence

Historical Dictionary of German Intelligence

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

Double Cross in Cairo: The True Story of the Spy Who Turned the Tide of War in the Middle East

Historical Dictionary of Naval Intelligence

Historical Dictionary of World War I Intelligence

A Spy Among Friends: Now a major ITV series starring Damian Lewis and Guy Pearce

Historical Dictionary of British Intelligence: Edition 2

Historical Dictionary of Israeli Intelligence

Encyclopedia of Political Assassinations

Imminent: Inside the Pentagon's Hunt for UFOs

Historical Dictionary of Cold War Counterintelligence

Historical Dictionary of World War II Intelligence

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

Churchill's Ministry of Ungentlemanly Warfare: The Mavericks who Plotted Hitler's Defeat

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

Becoming Bulletproof: Life Lessons from a Secret Service Agent