1. and Where God Lives in the Human Brain. Naperville, Ill.: Sourcebooks, 2001.
2. Spirituality
3. “The Spiritual Lives of Artists/Teachers.” Paper presented at the annual meeting of the American Educational Research Association, Chicago, Apr. 2003.
4. The Conscious Mind: In Search of a Fundamental Theory. Oxford, U.K.: Oxford University Press, 1997.
5. Temperament and personality