Agatha Christie (1890-1976) is the best-selling author of all time. She wrote 66 crime novels and story collections, fourteen plays, and six novels under a pseudonym in Romance. Her books have sold over a billion copies in the English language and a billion in translation.She also wrote the world's longest-running play, The Mousetrap, which was performed in the West End from 1952 to 2020, as well as six novels under the pseudonym Mary Westmacott.
