2Returning to print for the first time since the 1980s, Metamorphoses of Science Fiction is the origin point for decades of literary and theoretical criticism of science fiction and related genres. Darko Suvin's paradigm-setting definition of SF as the literature of cognitive estrangement established a robust theory of the genre that continues to spark fierce debate, as well as inspiring myriad intellectual descendants and disciples. Suvin's centuries-spanning history of the genre links SF to a long tradition of utopian and satirical literatures crying out for a better world than this one, showing how SF and the imagination of utopia are now forever intertwined. In addition to the 1979 text of the book, this edition contains three additional essays from Suvin that update, expand and reconsider the terms of his original intervention, as well as a new introduction and preface that situate the book in the context of the decades of SF studies that have followed in its wake.