Between 1952 and 1954, John Raymond published four digest-size science fiction and fantasy magazines. Raymond was an American publisher of men's magazines who knew little about science fiction, but the field's rapid growth and a distributor's recommendation prompted him to pursue the genre. Raymond consulted and then hired Lester del Rey to edit the first magazine, Space Science Fiction, which appeared in May 1952. Following a second distributor's suggestion that year, Raymond launched Science Fiction Adventures, which del Rey again edited, but under an alias. In 1953, Raymond gave del Rey two more magazines to edit: Rocket Stories, which targeted a younger audience, and Fantasy Magazine, which published fantasy rather than science fiction.
All four magazines were profitable, but Raymond did not reinvest the profits in improving the magazines and was late in paying contributors. Del Rey persuaded Raymond to invest some of the profits back into the magazines, but nothing came of this and, when del Rey discovered that Raymond was planning to cut rates instead, he resigned. Two of the magazines continued for a short time with Harry Harrison as editor, but by the end of 1954 all four magazines had ceased publication.
The magazines are well regarded by science fiction historians. They carried fiction by many names well known in the field or who later became famous, including Isaac Asimov, Philip K. Dick, Robert E. Howard, and John Jakes.