John Frederick Clute is a Canadian-born author and critic specializing in science fiction and fantasy literature. Since 1969, he has lived in both England and the United States, establishing himself as a prominent voice in speculative fiction criticism. Clute was one of eight people who founded Interzone, an influential English magazine, in 1982. The magazine became an important venue for science fiction and fantasy discussion and publication. He has been widely recognized for his contributions to the field. Critics have described him as "an integral part of science fiction's history" and "perhaps the foremost reader-critic of science fiction in our time, and one of the best the genre has ever known."