- Praying With Icons (1997)
- The Ladder of the Beatitudes (1999)
- Confession: Doorway to Forgiveness (2002)
- The Road to Emmaus: Pilgrimage as a Way of Life (2007)
- Living With Wisdom (2008)
- All Is Grace: A Biography of Dorothy Day (2011)
- Loving Our Enemies: Reflections on the Hardest Commandment (2014)
- The Root of War Is Fear: Thomas Merton's Advice to Peacemakers (2016)
- Writing Straight with Crooked Lines: A Memoir (2020)
- Eyes of Compassion (2021)