God's Politics. Why the Right Gets It Wrong and the Left Doesn't Get It, by Jim Wallis, HarperSanFrancisco, 2005. ISBN: 0060558288

The Prophetic Imagination, Revised Edition, by Walter Brueggemann. Augsburg Fortress Publishers, 2001. ISBN: 0800632877

Compendium Of The Social Doctrine Of The Church, by Pontifical Council For Justice And Peace, United States Conference of Catholic Bishops Publishing, 2005. ISBN: 1574556924.