James Blish leads a double role. As Blish he is one of the most accomplished sf novelists now writing, as attested by such titles as Black Easter, Cities in Flight, and the recently published And All the Stars a Stage. As William Atheling, he has equal importance as one of the most provocative critics now writing of the genre.

More Issues at Hand confirms this importance. He is one of the few popular critics who has always measured sf by its artistic merit and who explicitly shows himself aware of its relationship to a literary tradition that stretches back beyond Wells and Verne. In his first essay, dated 1965–1966, "Science Fiction as a Movement," he sets forth a basic theme: "The process of gradual re-assimilation of science fiction into the mainstream of literature … is bound to be painful for fans who want to claim some special superiority for the...