Wars Spy

The Culper Ring : The History and Legacy of the Revolutionary War's Most Famous Spy Ring

Charles River Editors

Code Breaker, Spy Hunter : How Elizebeth Friedman Changed the Course of Two World Wars

Laurie Wallmark

Dead Doubles : The Extraordinary Worldwide Hunt for One of the Cold War’s Most Notorious Spy Rings

Trevor Barnes

The Librarian Spy: A Novel of World War II

Madeline Martin

The Skripal Files: Putin, Poison and the New Spy War

Mark Urban

A Colder War

Charles Cumming

Hitler's Secret Army : A Hidden History of Spies, Saboteurs, and Traitors in World War II

Tim Tate

Cold War Spy Stories from Eastern Europe

Britain's Secret Defences: Civilian Saboteurs, Spies and Assassins During the Second World War

Andrew Chatterton

Lincoln's Spies : Their Secret War to Save a Nation

Douglas Waller

Her Secret War

Pam Lecky

Operation Garbo : The Personal Story of the Most Successful Spy of World War II

Juan Pujol García, Nigel West