The Pope’s War: Why Ratzinger’s Secret Crusade Has Imperiled the Church and How It Can Be Saved (with Bruce Chilton), Sterling Ethos, 2011
Stations of the Cosmic Christ (with Bishop Marc Andrus), Kion Yamaguchi Press, 2016
Occupy Spirituality: A Radical Vision for a New Generation (Sacred Activism), (with Adam Bucko) North Atlantic Books, 2013
Hildegard of Bingen: A Saint for Our Times: Unleashing Her Power in the 21st Century, Namaste Publishing, 2012
Christian Mystics: 365 Readings and Meditations, New World Library, 2011
A Way to God: Thomas Merton’s Creation Spirituality Journey, New World Library, 2016)
