* The Tarot, Magic, Alchemy, Hermeticism, and Neoplatonism, Second Edition 2019,  
*Alchemy and the Tarot: An Examination of the Historic Connection between Alchemy and the Tarot, with a Guide to The Alchemical Tarot, 2011, 
* The Fools Journey: the History, Art, & Symbolism of the Tarot', 2010, 
* Mysteries, Legends, and Unexplained Phenomena Series: Magic and Alchemy, 2009, 
* The Vampire Tarot, 2009,  
* Mysteries, Legends, and Unexplained Phenomena Series: Shamanism, 2008,  
* Mysteries, Legends, and Unexplained Phenomena Series: Astrology and Divination, 2008, 
* The Tarot: History, Symbolism, and Divination, 2005, 
* The Buddha Tarot Companion: A Mandala of Cards, 2004, 
* A Gnostic Book of Saints, 2001, 
* The Angels Tarot, coauthored with Rosemary Ellen Guiley, 1995, 
* The Alchemical Tarot, coauthored with Rosemary Ellen Guiley, 1995,