* _Children of the White Goddess: The Hidden History of the Druids_ (1995)
* _The Witches' Bible: The Complete Guide to Witchcraft and the Wiccan Religion_ (1997)
* _The Lost Circle: A Complete History of the Witches of Great Britain and North America_ (1999)
* _The Book of Shadows: A Celtic Year of Witchcraft_ (1999)
* _The Coven: A Witchcraft Grimoire_ (2000)
* _The Druid's Handbook_ (2001)
* _The Book of Spells: A Handbook of Rituals and Charms_ (2002)
* _The Oracle of the Moon: A Book of Divination_ (2003)
* _The Tarot of the Witch Queen_ (2004)
* _The Healing Herbs Bible_ (2011)
* _The Spiritual Herbal_ (2012)
* _The Book of Practical Herbal Magic_ (2013)
* _The Magical Herbal Oracle Deck_ (2014)
Tarot decks
* The Witch Queen Tarot
* The Druid Tarot
* The Green Witch Tarot
* The Shadow Queen Tarot
* The Sacred Forest Tarot
* The Crystal Oracle Tarot
* The Wildwood Tarot
Other works
* Contributor to _The Encyclopedia of Wicca and Witchcraft_ (2002)
* Contributor to _The Encyclopedia of Magic and the Supernatural_ (2003)
* Contributor to _The Encyclopedia of the Occult_ (2004)
* Contributor to _The Encyclopedia of Witches and Witchcraft_ (2006)