For many decades, Twayne has published a number of series introducing important literary authors. These series include Twayne's United States Authors, Twayne's English Authors, and Twayne's World Authors series. Each volume in these series serves as an introductory handbook to a specific author, covering biography, major works, critical response, and important bibliography. 100+ of these volumes are now available online in the Gale Virtual Reference Library. This guide, on its various tabs, provides you links to the specific author volumes which are available.