An American author of works of science fiction and fantasy, he is especially known for his four-volume Dark Border series. The individual novel and short story titles in the popular series include The Wolves of Sarlow and The Lost Prince.
He would frequently write by night, taking breaks to practice his sword fighting.
He was a founding member of the Society for Creative Anachronism, which was dedicated to reviving the study of medieval European history.
Gordon R. Dickson was another popular fantasy and science-fiction author.