Twayne's Authors Series This link opens in a new windowTwayne’s Authors Online series of literary criticism offers in-depth introductions to the lives and works of writers, the history and influence of literary movements, and the development of literary genres. This eBook resource features the content of nearly 900 books from six print series — U.S. Authors Series Classic, English Writers Series Classic, World Authors Series Classic, Masterwork Studies, Studies in Short Fiction, and updated editions of U.S. Authors, World Authors and English Authors.