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

The Autobiography of Malcolm X

Historical Dictionary of Cold War Intelligence

With the Old Breed: The World War Two Pacific Classic

The A to Z of Sexspionage

Zealot: The Life and Times of Jesus of Nazareth

Historical Dictionary of Signals Intelligence

Adolf Hitler: The Definitive Biography

MI5: British Security Service Operations, 1909–1945: The True Story of the Most Secret counter-espionage Organisation in the World

Seven Troop

Mask: MI5's Penetration of the Communist Party of Great Britain

Dear Leader: North Korea's senior propagandist exposes shocking truths behind the regime

The A to Z of British Intelligence

Alexander Hamilton

MI6: British Secret Intelligence Service Operations, 1909–1945

An Immigrant's Love Letter to the West

GCHQ: The Secret Wireless War, 1900–1986

Long Walk To Freedom: 'Essential reading' Barack Obama

Spycraft Secrets: An Espionage A-Z

Infidel