Ancient Astrology in Theory and Practice: A Manual of Traditional Techniques, Volume I: Assessing Planetary Condition

Just Six Numbers: The Deep Forces That Shape The Universe

Spacetime and Geometry: An Introduction to General Relativity

Special Relativity and Classical Field Theory: The Theoretical Minimum

Welcome to the Universe: An Astrophysical Tour

Cosmology Journal (Diary, Notebook)

Smithsonian Atlas of Space: A Map to the Universe from the Big Bang to the Future

The Philosophy of Redemption

The Anthropic Cosmological Principle (Oxford Paperbacks)

Weird Universe: Everything We Don’t Know About Space (and Why It’s Important) (Learn About the Universe, Astrophysics Gifts)