A Secret History of Christianity: Jesus, The Last Inkling, And The Evolution Of Consciousness

Inward

The Big Questions: God

The Art of Loving

Dante's Divine Comedy: A Guide for the Spiritual Journey

The Devil's Notebook

How To Be An Agnostic

Leaves of Grass

Love: All That Matters

After Atheism: Science, Religion and the Meaning of Life

The Blank Slate: The Modern Denial of Human Nature

God: All That Matters

Essays in Humanism

Wellbeing

The Little Book of Humanism: Universal lessons on finding purpose, meaning and joy

Spiritual Intelligence in Seven Steps

Lila: An Inquiry Into Morals

Understand Humanism: Teach Yourself

The Arrogance of Humanism