The Doors of Perception

The Courage to Be

A Confession

Liberation At Death

The Varieties of Religious Experience: A Study in Human Nature

The Classic Collection of Soren Kierkegaard: Fear and Trembling, Philosophical Fragments, Sickness Unto Death

The Confessions of St. Augustine

Paradise Lost

A Brief History of Everything

The Kybalion: A Study of The Hermetic Philosophy of Ancient Egypt and Greece

The Sufi Message of Hazrat Inayat Khan: The Alchemy of Happiness

The Sources of Spring Water in the World

The Faithful Apologist: Rethinking the Role of Persuasion in Apologetics

The Monk and the Philosopher: A Father and Son Discuss the Meaning of Life

The Sufi Message of Hazrat Inayat Khan: The Mysticism of Sound, Music, The Power of the Word, Cosmic Language

The Prophet

The Transcendent Brain: Spirituality in the Age of Science

The Antichrist – Audiobook: The Antichrist by Friedrich Wilhelm Nietzsche: Nietzsche's Provocative Critique of Christianity and Morality

Confessions