J.R.R. Tolkien: Author of the Century nonfiction HarperCollins, 2000
The Oxford Book of Fantasy Stories anthology Oxford University Press, 1994
The Oxford Book of Science Fiction Stories anthology Oxford University Press, 1992
The Oxford Book of Science Fiction Stories anthology Oxford University Press, 1992
The Road to Middle-earth: How J.R.R. Tolkien Created a New Mythology nonfiction Allen & Unwin, 1982
The Shadow-Walkers: Jacob Grimm's Mythology of the Monstrous nonfiction Arizona Center for Medieval and Renaissance Studies, 2005