25 books and authors that won both Hugo and Nebula awards

Hugo and Nebula Awards

This is a list of the authors and their works that have won both the Hugo Award and the Nebula Award (or the Ray Bradbury Award, given in place of the Nebula Award for Best Script since 2009), given annually to works of science fiction or fantasy literature. The Hugo Awards are voted on by science-fiction fans at the World Science Fiction Convention (Worldcon); the Nebula Awards—given by the Science Fiction and Fantasy Writers of America (SFWA)—began in 1966, making that the first year joint winners were possible.