David John Moore Cornwell, better known by his pen name John le Carré, was a British author, best known for his espionage novels, many of which were successfully adapted for film or television. A "sophisticated, morally ambiguous writer", he is considered one of the greatest novelists of the postwar era. During the 1950s and 1960s, he worked for both the Security Service (MI5) and the Secret Intelligence Service (MI6). Near the end of his life, due to his strong disapproval of Brexit, he took out Irish citizenship, which was possible due to his having an Irish grandparent.

Smiley's People is a spy novel by British writer John le Carré, published in 1979. Featuring British master-spy George Smiley, it is the third and final novel of the "Karla Trilogy", following Tinker Tailor Soldier Spy and The Honourable Schoolboy. George Smiley is called out of retirement to investigate the death of one of his old agents: a former Soviet general, the head of an Estonian émigré organisation based in London. Smiley learns the general had discovered information that will lead to a final confrontation with Smiley's nemesis, the Soviet spymaster Karla.