and the KGB's Plot to Kill the Pope: HarperCollins, październik 2000 Mortal Crimes: The Greatest Theft in History: Soviet Penetration of the Manhattan Project, Nowy Jork, Enigma Books, 2004 The Guy Liddell Diaries: 1939-1942 Volume 1: Frank Cass Publishers, luty 2005 The Guy Liddell Diaries: 1942-1945 Volume 2: Routlege, Londyn, czerwiec 2005 Historical Dictionary of British Intelligence: Scarecrow Press, Londyn, czerwiec 2005 Mask: MI5's Penetration of the Communist Party of Great Britain: Frank Cass Publishers, lipiec 2005 On Her Majesty's Secret Service: The Chiefs of Britain's Intelligence Agency, MI6: Greenhill Books, Londyn, październik 2006 Government Communications Headquarters (Coronet Books); The Sigint Secrets: The Signals Intelligence War, 1990 to Today-Including… A Thread of Deceit: Espionage Myths of WWII; Counterfeit Spies (Nigel West Intelligence Library); Secret War: Story of S.O.E., Britain's Wartime Sabotage Organisation; The Illegals;