Leo Margulies (June 22, 1900[citation needed] – December 26, 1975)[1] was an American editor and publisher of science fiction and fantasy pulp magazines and paperback books.
After briefly attending Columbia University, Margulies began working for Munsey's Magazine, selling subsidiary rights to its stories.
[1] He later spent five years as head of East Coast research for Fox Films, a predecessor company of 20th Century Fox, and afterward became editorial chief of publisher Ned Pines' Standard Magazines.
[citation needed] After the war, Margulies helped launch Pines' Popular Library line of paperback books.
[1] In December 1975, he was attending a meeting in London of the Mystery Writers of America when he suffered a stroke.