Astrophysics for Young People in a Hurry

How We Got to Now: Six Innovations That Made the Modern World

Who Was Charles Darwin?

What Is the Story of the Headless Horseman?

Genius Physicist Albert Einstein

Guidebook to the Unexplained

The Woman Who Split the Atom: The Life of Lise Meitner

What Do We Know About the Chupacabra?

What Do We Know About the Winchester House?

What Do We Know About Alien Abduction?

What Do We Know About the Roswell Incident?

What Do We Know About the Nazca Lines?

What Do We Know About the Mystery of D. B. Cooper?

What Do We Know About the Kraken?

Cutting-Edge Space Tourism

Where Are the Constellations?

Where Is Our Solar System?

Growing Up Muslim: Understanding the Beliefs and Practices of Islam

The Octopus Scientists