Career
He began publishing in May 1952 with the widely anthologized story "What Have I Done?". About half of his work falls into two series: the "Bossy" series, about a computer with artificial intelligence, was written either alone or in collaboration with Alex Apostolides or Frank Riley. And the "Ralph Kennedy" series, which is more comical, and was written mostly solo, including the novel When They Come From Space, although there was one collaboration with Apostolides.
Clifton"s other most popular short story is "," the first of three appearances in Horace Gold"s Galaxy (July 1952), about a super-intelligent toddler with psi abilities.
From Clifton"s correspondence we know that Gold "editorially savaged" the story, which appeared in severely truncated or altered form. The story has been compared favorably to Kuttner and Moore"s "Mimsy Were the Borogoves," which was published in Astounding magazine nine years earlier.
Clifton worked for many years as a personnel manager and interviewed "over 200,000" people according to a personal letter he wrote to Judith Merril, quoted in The Science Fiction of Mark Clifton. This experience formed much of Clifton"s attitude about the delusions people have of themselves, but also the greatness of which they are capable.
Barry North. Malzberg wrote in The Science Fiction of Mark Clifton that "Clifton was an innovator in the early 1950s and such an impressive innovator that his approach has become standard among science fiction writers.
He used the common themes of science fiction -- alien invasion, expanding technology, revolution against political theocracy, and space colonization -- but unlike any writer before him, he imposed upon these standard themes the full range of sophisticated psychological insight.".