who founded it?
Aaron A. Wyn
Ace Books
Ace Books is a publisher of science fiction and fantasy books founded in New York City in 1952 by Aaron A. Wyn.
what does 'ace books' mean? A publisher of science fiction and fantasy books
wiki:6445146
Ace Books [SEP] Introduction
Ace Books is a publisher of science fiction and fantasy books founded in New York City in 1952 by Aaron A. Wyn. It began as a genre publisher of mysteries and westerns, and soon branched out into other genres, publishing its first science fiction (SF) title in 1953. This was successful, and science fiction titles outnumbered both mysteries and westerns within a few years. Other genres also made an appearance, including nonfiction, gothic novels, media tie-in novelizations, and romances. Ace became known for the "tête-bêche" binding format used for many of its early books, although it did not originate the format.