If was an American science fiction magazine launched in March 1952 by Quinn Publications, owned by James L. Quinn.
May 1955 issue with cover art by Kenneth S. Fagg titled "Technocracy Versus the Humanities".
The June 1954 issue of If, featuring a wraparound cover by Kenneth S. Fagg, titled "Lava Falls on Mercury"
Twelve issues of If, showing the major variations in cover design over the magazine's lifetime
A science fiction magazine is a publication that offers primarily science fiction, either in a hard-copy periodical format or on the Internet. Science fiction magazines traditionally featured speculative fiction in short story, novelette, novella or novel form, a format that continues into the present day. Many also contain editorials, book reviews or articles, and some also include stories in the fantasy and horror genres.
A front cover of Imagination, a science fiction magazine in 1956
March 1941 cover of the Science Fiction magazine, volume 2, issue 4