This is the first critical study of the work of John Wyndham, a formative figure in postwar British science fiction. It explores his beginnings in the 1930s and then offers a novel-by-novel examination of his key works, including his short stories. This is complemented by a discussion of his evolving view of science fiction, as revealed through his essays and reviews. In addition, the book reprints for the first time one of Wyndham's key essays on the genre, 'Science-Fiction: Space-Opera', written in 1955.