Kim Philby's life and career has inspired an entire literary genre: the spy novel of betrayal. He was one of the leaders of the British counter-intelligence eff

Students and enthusiasts of American history are familiar with the Revolutionary War spies Nathan Hale and Benedict Arnold, but few studies have closely examine

The history of Australia's intelligence operations in the early 20th century reveals the dark underside of Australian politics, including early infiltration by

NEW YORK TIMES BESTSELLER • The celebrated author of Double Cross and Rogue Heroes returns with a thrilling Americans-era tale of Oleg Gordievsky, the Russian

The first authoritative account of a well-kept secret: the British Fifth Column and its activities during the Second World War.