John le Carré  David John Moore Cornwell (Date of birth: 19 October 1931), better known by his 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. His books include "The Looking Glass War" (1965), "Tinker Tailor Soldier Spy" (1974), "Smiley's People" (1979), "The Little Drummer Girl" (1983), "The Night Manager" (1993), "The Tailor of Panama" (1996), "The Constant Gardener" (2001), "A Most Wanted Man" (2008) and "Our Kind of Traitor" (2010), all of which have been adapted for film or television. Cornwell was born on 19 October 1931 in Poole, Dorset, England. His father was Ronald Thomas Archibald (Ronnie) Cornwell (1906–75), and his mother was Olive Moore Cornwell (née Glassey, b. 1906). His older brother, Tony (1929–2017), was an advertising executive and former county cricketer (for Dorset), who lived in America. His younger half-sister is the actress Charlotte Cornwell. His younger half-brother, Rupert Cornwell, is a former Washington bureau chief for the newspaper "The Independent". Cornwell said he did not know his mother, who abandoned him when he was five years old, until their re-acquaintance when he was 21 years old. His father had been jailed for insurance fraud, was an associate of the Kray twins, and was continually in debt. Their father/son relationship was difficult. A biographer reports, "His father, Ronnie, made and lost his fortune a number of times due to elaborate confidence tricks and schemes which landed him in prison on at least one occasion. This was one of the factors that led to le Carré's fascination with secrets." Rick Pym, Magnus Pym's father, a scheming con-man in "A Perfect Spy", was based on Ronnie. When his father died in 1975, Cornwell paid for a memorial funeral service but did not attend it. Cornwell's schooling began at St Andrew's Preparatory School, near Pangbourne, Berkshire, and continued at Sherborne School.