An American science fiction and fantasy author, he is best known for his humorous MythAdventures and Phule's Company series. His other works include The Cold Cash books and the Thieves' World series.
He attended the University of Michigan at Ann Arbor and later served in the United States Army.
He stopped writing in the 1990s as a result of financial woes.
He married twice and had two children. He collaborated on several literary works with his wife, Lynn Abbey.
He was reading a Terry Pratchett novel when he died.