- Time Storms (1977)
- Firefrost (1979)
- Stormchild (1982)
- Moonblood (1984)
- Worldshaker (1990)
- The Eye of The Labyrinth (1992)
- Serpent of the West (1995)
Standalone Short Fiction:
- The White Horse of the Westbury Moor (1980)
- The Ballad of the Windigo (1983)
- Children of the Night (1986)
Short Story Collections:
- The Devil's Coat-Tails (1984)
- The Wendigo's Children and Other Stories (1989)
Non-Fiction:
- The Art of Fantasy Illustration: A Visual Guide to Storytelling Techniques (2002)
- The Art of Fantasy Art (2004)
- The Encyclopedia of Fantasy Illustration: A Comprehensive Guide to Illustrators of Fantasy and Fantastic Art (2005)
- The World of Fantasy Illustration (2007)
- The Art of Fantasy: A Vision of the Fantastic (2009)
- Visions of the Fantastic (2011)
- Imagination: The Art of Fantasy (2014)