Intelligence service 59 Fiction 24 World War, 1939-1945 17 Spy stories 14 Bolan, Mack (Fictitious character) 13 Bond, James (Fictitious character) 10 Intelligence officers 10 mer ... History 9 Women spies 9 British 8 Ryan, Jack (Fictitious character) 8 Secret service 7 Terrorism 7 Devereaux (Fictitious character) 6 Oakes, Blackford (Fictitious character) 6 Pollifax, Emily (Fictitious character) 6 Quiller (Fictitious character) 6 Smiley, George (Fictitious character) 6 Detective and mystery stories 5 Spies 5 Terrorists 5 Americans 3 Carter, Nick (Fictitious character) 3 Cold War 3 Conspiracies 3 Grafton, Jake (Fictitious character) 3 Helm, Matt (Fictitious character) 3 Large type books 3 Nazis 3 Nuclear submarines 3 mindre ...