- Faith Styles: Ways People Believe (2006)
- The Way of Thomas: Nine Insights for Enlightened Living from the Secret Sayings of Jesus (2006)
- Noticing the Divine: An Introduction to Interfaith Spiritual Guidance (2007)
- Growing Into God: A Beginner’s Guide to Christian Mysticism (2012)
- Faithful Generations: Effective Ministry Across Generational Lines (2013)
- Spiritual Guidance Across Religions: A Sourcebook for Spiritual Directors and Other Professionals Providing Counsel to People of Differing Faith Traditions (2014)