- Ecology and Liberation: A New Paradigm (1995)
- Cry of the Earth, Cry of the Poor (1997)
- The Prayer of Saint Francis: A Message of Peace for the World Today (2001)
- Praying with Jesus and Mary: Our Father, Hail Mary (2005)
- The Lord Is My Shepherd: Divine Consolation in Times of Abandonment (2006)
- Francis of Assisi: A Model for Human Liberation (2006)
- Passion of Christ, Passion of the World: The Facts, Their Interpretation, and Their Meaning Yesterday and Today (2011)
- Christianity in a Nutshell (2013)