Hestia Come Home / Rutledge Books, 2001

Hildegard of Bingen: A Saint for Our Times: Unleashing Her Power in the 21st Century, Namaste Publishing, 2012

Guest’s essay in, Of Heaven and Earth / The Book Tree, 1996

Healing as a Sacred Path: A Story of Personal, Medical, and Spiritual Transformation / Chrysalis, 2002

Healing The Past: Getting On With Your Life, Llewellyn, 1997

Glimpses of Eternity: Sharing a Loved One’s Passage from this Life to the Next, Guideposts, 2010

Global Awakening: New Science and the 21st-Century Enlightenment Global Awakening (by Michael Schacker), Inner Traditions, 2012

God and Love on Route 80: The Hidden Mystery of Human Connectedness

God and the Evolving Universe: The Next Step In Personal Evolution (With Michael Murphy) / Jeremy P. Tarcher/Putnam, 2002

God at the Edge: Searching for the Divine in Uncomfortable and Unexpected Places