Agatha Christie was a British crime writer. She also wrote romances under the name Mary Westmacott.
Dame Agatha Mary Clarissa Christie, DBE (ne Miller; 15 September 1890 - 12 January 1976) was a British crime writer of novels, short stories, and plays. She also wrote romances under the name Mary Westmacott, but she is best remembered for her 66 detective novels and more than 15 short story collections, most of which revolve around the investigations of such characters as Hercule Poirot, Miss Jane Marple and Tommy and Tuppence. Born to a wealthy upper-middle-class family in Torquay, Devon, Christie served in a hospital during the First World War before settling into married life with her first child in London. Although initially unsuccessful at getting her work published, in 1920, The Bodley Head press published her novel The Mysterious Affair at Styles, featuring the character of Poirot. This launched her literary career. According to the Guinness Book of World Records, Christie is the best-selling novelist of all time.