Secret History: Conspiracies from Ancient Aliens to the New World Order

Astrophysics for People in a Hurry

Bloodline of the Gods: Unravel the Mystery of the Human Blood Type to Reveal the Aliens Among Us

Death by Black Hole: And Other Cosmic Quandaries

The Pyramids and the Pentagon: The Government's Top Secret Pursuit of Mystical Relics, Ancient Astronauts, and Lost Civilizations

The Science of Interstellar

Secret Societies: The Complete Guide to Histories, Rites, and Rituals

The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory

Immortality of the Gods: Legends, Mysteries, and the Alien Connection to Eternal Life

Origins: Fourteen Billion Years of Cosmic Evolution

Close Encounters of the Fatal Kind: Suspicious Deaths, Mysterious Murders, and Bizarre Disappearances in UFO History

Imminent: Inside the Pentagon's Hunt for UFOs

Keep Out!: Top Secret Places Governments Don't Want You to Know About

Endurance: A Year in Space, A Lifetime of Discovery

Control: MKUltra, Chemtrails and the Conspiracy to Suppress the Masses

The Magic of Reality: From the multi-million bestselling author of The God Delusion

The Alien Book: A Guide To Extraterrestrial Beings On Earth

Space Chronicles: Facing the Ultimate Frontier

Monsters of the Deep

The Extraterrestrial Species Almanac: The Ultimate Guide to Greys, Reptilians, Hybrids, and Nordics