Spider Robinson is an American-Canadian science fiction author. He is famously known for his Hugo Award-winning Callahan's Crosstime Saloon series, which combines humor, puns, and profound optimism. Throughout his career, Robinson has won numerous prestigious accolades, including the Nebula Award and the John W. Campbell Award for Best New Writer. After Robert A. Heinlein's death, Robinson was among those selected to edit and publish Heinlein's work posthumously.