Book excerpt: Russell H. Fitzgibbon presents a short history of Dame Agatha's life, criticism of her works, and a summary of how critics and reviewers view her work. Includes a bibliography of all the works of Christie published in either Great Britain or the United States, classified according to the detectives involved; an alphabetical list of Christie detective and mystery book and short-story titles; a short-story finder for Christie collections; and an index of all but the least important of the thousands of characters introduced by the author in the detective and mystery short stories and novels.