The Book: On the Taboo Against Knowing Who You Are

Cold-Case Christianity: A Homicide Detective Investigates the Claims of the Gospels

The Way of Zen

Zealot: The Life and Times of Jesus of Nazareth

This Is It: and Other Essays on Zen and Spiritual Experience

The Cost of Discipleship

What Is Zen?

Essential Gnostic Scriptures

What Is Tao?

What It Means to Be Protestant: The Case for an Always-Reforming Church

Still the Mind: An Introduction to Meditation

The New Testament in Its World: An Introduction to the History, Literature, and Theology of the First Christians

Nature, Man and Woman

The Pilgrim's Progress: From This World to That Which is to Come

Tao: The Watercourse Way: The Watercourse Way

Learning Theology with the Church Fathers

In My Own Way: An Autobiography

The Gnostic Bible: Revised and Expanded Edition

Buddhism the Religion of No-Religion

Beyond Belief: The Secret Gospel of Thomas