Two Complete Science Adventure Books

Two Complete Science-Adventure Books was an American pulp science fiction magazine, published by Fiction House, which lasted for eleven issues between 1950 and 1954 as a companion to Planet Stories. Each issue carried two novels or long novellas. It was initially intended to carry only reprints, but soon began to publish original stories. Contributors included Isaac Asimov, Robert A. Heinlein, Arthur C. Clarke, Poul Anderson, John Brunner, and James Blish. The magazine folded in 1954, almost at the end of the pulp era.

The early 1950s saw dramatic changes in the world of U.S. science fiction (sf) publishing. At the start of 1949, all but one of the major magazines in the field were in pulp format; by the end of 1955, almost all had either ceased publication or switched to digest format. Despite the rapid decline of the pulp market, several new science fiction magazines were launched in pulp format during these years.Planet Stories, a pulp sf magazine that focused on interplanetary adventure, was sufficiently successful to switch to from quarterly to bimonthly in late 1950. The publisher, Fiction House, also decided to launch a companion magazine, aimed more specifically at the growing readership for pocket books. This was Two Complete Science-Adventure Books; the first issue was dated Winter 1950, and it appeared three times a year on a regular schedule. Malcolm Reiss, who oversaw several of Fiction House's magazines and comics, was editorially involved with the Two Complete Science-Adventure Stories throughout its life, but for the first three issues Jerome Bixby, who at that time was editing Planet Stories, took on the new magazine as well. Bixby left in 1951 to work for Standard Publications. After this, Reiss was left in sole control until 1953, when Katherine Daffron was appointed editor. Daffron edited the magazine for the last two issues. Fiction House tried another companion magazine that year, Tops in Science Fiction, but it lasted for only two issues.Two Complete Science-Adventures Books outlasted Tops in Science Fiction by only a few months; it was cancelled in 1954, amid the collapse of the overall pulp market. The final issue was dated Spring 1954, and Planet Stories itself only lasted until the following year.

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