Just Call Me Lopez: Getting to the Heart of Ignatius Loyola

Silence: A Christian History

Maria Woodworth-Etter: The Evangelist

Augustine: Conversions and Confessions

A Confession and Other Religious Writings

Breaking the Spell: Religion as a Natural Phenomenon

Past Lives: An Investigation into Reincarnation Memories

An Introduction to Biblical Ethics

The Sickness Unto Death: A Christian Psychological Exposition of Edification and Awakening by Anti-Climacus

Is God Happy?: Selected Essays

Holy Spirit Power