Animal Talk: Interspecies Telepathic Communication, Beyond Words Publishing, 1999

Anyway: The Paradoxical Commandments / Inner Ocean, 2001

Apprenticed to Spirit: The Education of a Soul, Riverhead Hardcover, 2011

Are We Spiritual Machines: Ray Kruzweil vs. the Critics of Strong A.I. / Discovery Institute, 2002

Art Psalms, North Atlantic Books, 2008

Artemis: The Indomitable Spirit in Everywoman, Conari Press, 2014

At Home In the Universe: Re-envisioning the Cosmos with the Heart / Chrysalis Books, 2001

Adventures Among Spiritual Intelligences: Angels, Aliens, Dolphins and Shamans / Wisdom Editions, 2001

Adventures Beyond the Body: How to Experience Out-of-Body Travel, Harper San Francisco, 1996

African Spirits Speak: A White Woman’s Journey Into the Healing Tradition of the Sangoma / Destiny Books, 196