The John W. Campbell Memorial Award is an annual award presented for the best science fiction or fantasy novel published in the previous year. It honors the legacy of John W. Campbell Jr., a significant figure in the genre, known for his editorial work and influence on science fiction literature. Established in 1973, the award is administered by the Center for the Study of Science Fiction at the University of Kansas. It is determined by a jury of judges, who evaluate works based on their originality, creativity, and overall contribution to the genre.