Agatha Christie is the most widely published author of all time and in any language, outsold only by the Bible and Shakespeare. Her books have sold over a billion copies in English and another bill...view moreAgatha Christie is the most widely published author of all time and in any language, outsold only by the Bible and Shakespeare. Her books have sold over a billion copies in English and another billion in a hundred foreign countries. She is the author of eighty novels and short-story collections, nineteen plays, and six novels under the name Mary Westmacott. She died in 1976.view less