The High Book of the Grail : A translation of the thirteenth century romance of Perlesvaus

The Book of Merlin: Insights from the Merlin Conference

The Way of Merlin: The Prophet, the Goddess and the Land

The Magical World of the Inklings: J. R. R. Tolkien, C. S. Lewis, Charles Williams, Owen Barfield

Ancient Spirit: An Exploration of Magic

My Heart's Desire

Science Confronts the Paranormal

The House of the Messiah: Controversial Revelations on the Historical Jesus

Open Questions: An Introduction to Philosophy

Paranormal Borderlands of Science