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

Elizabeth: An intimate portrait from the writer who knew her and her family for over fifty years

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

Traitor King: The Scandalous Exile of the Duke and Duchess of Windsor: AS FEATURED ON CHANNEL 4 TV DOCUMENTARY

Historical Dictionary of World War I Intelligence

Three Days In June: The Incredible Minute-by-Minute Oral History of 3 Para's Deadly Falklands War Battle

Codeword Overlord: Axis Espionage and the D-Day Landings

Walking D-Day

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

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

Spycraft Secrets: An Espionage A-Z

The A to Z of Sexspionage

Spearhead: An American Tank Gunner, His Enemy and a Collision of Lives in World War II

Historical Dictionary of Sexspionage

Dunkirk: The History Behind the Major Motion Picture

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

Fake History: 101 Things that Never Happened

Secret War: The Story of SOE, Britain's Wartime Sabotage Organisation