Octavia Butler (1947-2006) spent the majority of her prolific career as the only major black female author of science fiction. Winner of both the Nebula and Hugo Awards as well as a MacArthur "genius" grant, the first for a science fiction writer, Butler created worlds that challenged notions of race, sex, gender, and humanity. Whether in the postapocalyptic future of the Parable stories, in the human inability to assimilate change and difference...