Darwinism as Religion: What Literature Tells Us about Evolution

The Road Less Travelled: A New Psychology of Love, Traditional Values and Spiritual Growth

The Gaia Hypothesis: Science on a Pagan Planet

The Cost of Discipleship

Atheism: What Everyone Needs to Know®

Transcending the Levels of Consciousness: The Stairway to Enlightenment

The Darwinian Paradigm

Summa Theologica (All Complete & Unabridged 3 Parts + Supplement & Appendix + interactive links and annotations)

The Cambridge History of Atheism

Fear and Trembling

Evolutionary Naturalism: Selected Essays

The Evolution-Creation Struggle

The Power of Myth

A Philosopher Looks at Human Beings

Buddhist Stories Volume 1

On the Way to Krishna