Psychology of Space Exploration: Contemporary Research in Historical Perspective

Astrophysics for People in a Hurry

Death by Black Hole: And Other Cosmic Quandaries

History of the United States Democracy: Key Civil Rights Acts, Constitutional Amendments, Supreme Court Decisions & Acts of Foreign Policy

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

The Smell of Kerosene: Pilot's "Day at the Office": Naval Air Operation, Jet & High Desert Research, Super Crusader, XB70, M2-F1, Triple-Sonic YF-12 Blackbird & Lunar Landing Research Vehicle

Origins: Fourteen Billion Years of Cosmic Evolution

The Smell of Kerosene

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

The Evolution of the U.S. Constitution: The Dynamic Evolution of American Governance

Imminent: Inside the Pentagon's Hunt for UFOs

We the People: The Foundation & Evolution of the U.S. Constitution: Essays and Documents on the American Constitution's Evolution

Endurance: A Year in Space, A Lifetime of Discovery

Attempt to Impeach Donald Trump - Declassified Government Documents, Investigation of Russian Election Interference & Legislative Procedures for the Impeachment

The Science of Interstellar

Attempt to Impeach Donald Trump: Declassified Government Documents

New Scientist: The Origin of (almost) Everything

Space Chronicles: Facing the Ultimate Frontier

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

The Astronomy Book: Big Ideas Simply Explained