Which author sets most of his work during The Cold War?

David John Moore Cornwell (born 19 October 1931), better known by the pen name John le Carré, is a British author of espionage novels. During the 1950s and 1960s, he worked for both the Security Service (MI5) and the Secret Intelligence Service (MI6). His third novel, The Spy Who Came in from the Cold (1963), became an international best-seller and remains one of his best-known works. Following the success of this novel, he left MI6 to become a full-time author.

Most of le Carré's books are spy stories set during the Cold War (1945–91) and portray British Intelligence agents as unheroic political functionaries aware of the moral ambiguity of their work and engaged more in psychological than physical drama.

The novels emphasise the fallibility of Western democracy and of the secret services protecting it, often implying the possibility of East-West moral equivalence. Moreover, they experience little of the violence typically encountered in action thrillers and have very little recourse to gadgets. Much of the conflict is internal, rather than external and visible. The recurring character George Smiley, who plays a central role in five novels and appears as a supporting character in four more, was written as an "antidote" to James Bond, a character le Carré called "an international gangster" rather than a spy and whom he felt should be excluded from the canon of espionage literature.