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

Band of Brothers: E Company, 506th Regiment, 101st Airborne from Normandy to Hitler's Eagle's Nest

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

SAS: Rogue Heroes: The authorized wartime history from the Sunday Times bestselling author

Historical Dictionary of World War I Intelligence

The Forgotten Soldier

Historical Dictionary of World War II Intelligence

The Second World War

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

The Choice: A true story of hope

Spycraft Secrets: An Espionage A-Z

The Last Stand of the Tin Can Sailors: The Extraordinary World War II Story of the U.S. Navy's Finest Hour

The A to Z of Sexspionage

The Rape Of Nanking: The Forgotten Holocaust Of World War II

Historical Dictionary of Sexspionage

D-Day: June 6, 1944: The Climactic Battle of World War II

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

Adolf Hitler: The Definitive Biography

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

The Longest Day: The Classic Epic of D-Day