Question: Alan Furst and Lee Child are what?

full_context: Document 1: Second Son (Child novel): "Second Son" is a short story featuring Jack Reacher, a fictional character created by British author Jim Grant (who writes under the pen name of Lee Child). It is notable in several ways: in being a short story, as Reacher mainly appears in full-length novels, of which sixteen appeared as of 2012 ; in giving a glimpse of the teen-age Reacher, making the story a prequel set far earlier chronologically than all other appearances of Reacher . "Second Son" and "Deep Down" were both released originally for the Kindle. "Second Son" was later included in the paperback and Kindle editions of "The Affair". "Second Son" was bundled with the movie "Jack Reacher" as a Target Exclusive, when the movie was released on Blu-ray on 7 May 2013.
Document 2: Clare Mackintosh: Clare Mackintosh is a British author. A former policewoman, her debut novel "I Let You Go" was a Richard & Judy book club pick. It won Theakston's Old Peculier Crime Novel of the Year Award in 2016, beating J K Rowling writing as Robert Galbraith.
Document 3: Alan Furst: Alan Furst (born February 20, 1941) is an American author of historical spy novels. Furst has been called "an heir to the tradition of Eric Ambler and Graham Greene," whom he cites along with Joseph Roth and Arthur Koestler as important influences. Most of his novels since 1988 have been set just prior to or during the Second World War and he is noted for his successful evocations of Eastern European peoples and places during the period from 1933 to 1944.
Document 4: William Kent Krueger: William Kent Krueger is an American author and crime writer, best known for his series of novels featuring Cork O'Connor, which are set mainly in Minnesota. In 2005 and 2006, he won back-to-back Anthony Awards for best novel. In 2014, his stand-alone book "Ordinary Grace" won the Edgar Award for Best Novel of 2013.
Document 5: The World at Night: The World at Night (1996) is a novel by Alan Furst.
Document 6: The Affair (Child novel): The Affair is the sixteenth book in the Jack Reacher series written by Lee Child but is a prequel set chronologically before most of them. It was published on 29 September 2011 in the United Kingdom and was published on 27 September 2011 in the USA. "The Affair" is a prequel set six months before Child's first novel, "Killing Floor" and setting out the explosive circumstances under which Reacher's career in the United States Army was terminated. This book is written in the first person.
Document 7: Legacy (Judd novel): Set in 1970s London, Legacy is a spy novel by English author Alan Judd. Published in 2001 it continues the story of Charles Thoroughgood, first introduced in his debut novel, "A Breed of Heroes", published 20 years earlier. British historian Peter Hennessy described it as 'one of the best spy novels ever'.
Document 8: John Grisham: John Ray Grisham Jr. ( ; born February 8, 1955) is an American bestselling writer, attorney, politician, and activist best known for his popular legal thrillers. His books have been translated into 42 languages and published worldwide.
Document 9: James Lee Burke: James Lee Burke (born December 5, 1936) is an American author of mysteries, best known for his Dave Robicheaux series. He has won Edgar Awards for "Black Cherry Blues" (1990) and "Cimarron Rose" (1998), and has also been presented with the Grand Master Award from the Mystery Writers of America. The Robicheaux character has been portrayed twice on screen, first by Alec Baldwin ("Heaven's Prisoners") and then Tommy Lee Jones ("In the Electric Mist").
Document 10: The Mask of Dimitrios: The Mask of Dimitrios is a 1944 American film noir directed by Jean Negulesco and written by Frank Gruber, based on the 1939 novel of the same name written by Eric Ambler (in the United States, it was published as "A Coffin for Dimitrios"). Ambler is known as a major influence on writers and a developer of the modern thriller genre.
Document 11: John le Carré: David John Moore Cornwell (born 19 October 1931), known by the pseudonym John le Carré ( ), is a British author of espionage novels. During the 1950s and the 1960s, he worked for both the Security Service and the Secret Intelligence Service, and began writing novels under his pen name. 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.
Document 12: Graham Greene: Henry Graham Greene (2 October 1904 – 3 April 1991), better known by his pen name Graham Greene, was an English novelist regarded by many as one of the great writers of the 20th century. Combining literary acclaim with widespread popularity, Greene acquired a reputation early in his lifetime as a major writer, both of serious Catholic novels, and of thrillers (or "entertainments" as he termed them). He was shortlisted, in 1966 and 1967, for the Nobel Prize for Literature. Through 67 years of writings, which included over 25 novels, he explored the ambivalent moral and political issues of the modern world, often through a Catholic perspective.
Document 13: Lee Child: James D. "Jim" Grant (born 29 October 1954), primarily known by his pen name Lee Child, is a British author who writes thriller novels, and is most well-known for his "Jack Reacher" novel series. The books follow the adventures of a former American military policeman, Jack Reacher, who wanders the United States. His first novel, "Killing Floor", won both the Anthony Award, and the Barry Award for Best First Novel.
Document 14: The Polish Officer: The Polish Officer (1995) is a novel by Alan Furst.
Document 15: The Spies of Warsaw: The Spies of Warsaw is a 2008 spy novel by Alan Furst about espionage involving the major nations shortly before World War II competing for influence and control over the future of Poland. The story starts in October 1937 and ends in May 1938, with a one paragraph description outlining the future of the two lead characters.
ground_truth: is a British author