HenriButter
Emil

Spy

Smiley's People
Call for the Dead
The Spy Who Came In From The Cold
Tinker Tailor Soldier Spy
Deep Undercover: My Secret Life and Tangled Allegiances as a KGB Spy in America
Liar, Temptress, Soldier, Spy
The Spies Who Never Were: The True Story of the Nazi Spies Who Were Actually Allied Double Agents
A Spy Among Friends: Kim Philby and the Great Betrayal
The Triple Agent: The al-Qaeda Mole who Infiltrated the CIA
The Billion Dollar Spy
Agent Zigzag
Bodyguard of Lies
Spycraft: The Secret History of the CIA's Spytechs, from Communism to al-Qaeda
The Cambridge Spies: The Untold Story of Maclean, Philby, and Burgess in America
The File: A Personal History
Surprise, Kill, Vanish: The Secret History Of CIA Paramilitary Armies, Operators, And Assassins
The Spy and the Traitor: The Greatest Espionage Story of the Cold War