An Outline of Occult Science

Cosmos

Theosophy

The Fabric of the Cosmos: Space, Time and the Texture of Reality

On Epidemics: Spiritual Perspectives

Billions & Billions: Thoughts on Life and Death at the Brink of the Millennium

Life Between Death and Rebirth

Human Universe

Theosophy (Translated): Introduction to the supersensible knowledge of the world and human destiny

Origins: Fourteen Billion Years of Cosmic Evolution

The Incarnation of Ahriman: The Embodiment of Evil on Earth

The Black Hole War: My Battle with Stephen Hawking to Make the World Safe for Quantum Mechanics

The Four Temperaments

UFOs: Generals, Pilots and Government Officials Go On the Record

The Electronic Doppelganger: The Mystery of the Double in the Age of the Internet

The Planets

The Philosophy of Freedom: The Basis for a Modern World Conception

Death by Black Hole: And Other Cosmic Quandaries

Meditation: Transforming Our Lives for the Encounter with Christ

Space Chronicles: Facing the Ultimate Frontier