A Shorter Summa: The Essential Philosophical Passages of St. Thomas Aquinas' Summa Theologica Edited and Explained for Beginners

Fundamentals of the Faith: Essays in Christian Apologetics

Practical Theology: Spiritual Direction from Saint Thomas Aquinas

Your Questions, God's Answers

Jacob's Ladder: Ten Steps to Truth

Because God Is Real: Sixteen Questions, One Answer

Why Does Everything Come in Threes?: A Short Book about Everything

Catholics and Protestants: What Can We Learn from Each Other?

The Best Things in Life: A Contemporary Socrates Looks at Power, Pleasure, Truth the Good Life

Yes or No?: Straight Answers to Tough Questions About Christianity

Between Heaven and Hell: A Dialog Somewhere Beyond Death with John F. Kennedy, C. S. Lewis and Aldous Huxley

Angels and Demons: What Do We Really Know about Them?

A Refutation of Moral Relativism: Interviews with an Absolutist

Heaven, the Heart's Deepest Longing

The God Who Loves You: Love Divine, All Loves Excelling

How to Be Holy: First Steps in Becoming a Saint

You Can Understand the Bible: A Practical and Illuminating Guide to Each Book in the Bible

Back to Virtue: Traditional Moral Wisdom for Modern Moral Confusion

Confessions of a Cafeteria Catholic

Between One Faith and Another: Engaging Conversations on the World's Great Religions