Historical Dictionary of Signals Intelligence

Historical Dictionary of Cold War Intelligence

Historical Dictionary of Cold War Intelligence

Historical Dictionary of World War I Intelligence

Historical Dictionary of World War II Intelligence

Historical Dictionary of World War I Intelligence

Historical Dictionary of World War II Intelligence

Historical Dictionary of British Intelligence: Edition 2

Historical Dictionary of British Intelligence: Edition 2

Historical Dictionary of Naval Intelligence

Hitler's Nest of Vipers: The Rise Of The Abwehr

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

The A to Z of Sexspionage

The A to Z of Sexspionage

Historical Dictionary of Sexspionage

Historical Dictionary of Cold War Counterintelligence

Historical Dictionary of Cold War Counterintelligence

Encyclopedia of Political Assassinations

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

Encyclopedia of Political Assassinations