Synthetic Men of Mars is a science fantasy novel by American writer Edgar Rice Burroughs, the ninth of his Barsoom series. It was first published in the magazine Argosy Weekly in six parts in early 1939. The first complete edition of the novel was published in 1940 by Edgar Rice Burroughs, Inc.Despite a successful career stretching back more than two decades, Burroughs had trouble finding a publisher for the serialized version of the novel.