What If?: Serious Scientific Answers to Absurd Hypothetical Questions

What If? 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions

Just Visiting This Planet, Revised and Updated for the Twenty-First Century: Further Scientific Adventures of Merlin from Omniscia

Thing Explainer: Complicated Stuff in Simple Words

The Ultimate Dad Joke Book: 501 Hilarious Puns, Funny One Liners and Clean Cheesy Dad Jokes for Kids (Gifts For Dad)

How To: Absurd Scientific Advice for Common Real-World Problems

Merlin's Tour of the Universe, Revised and Updated for the Twenty-First Century: A Traveler's Guide to Blue Moons and Black Holes, Mars, Stars, and Everything Far

The Body: A Guide for Occupants

Terrible Maps: The stupidly funny illustrated gift book perfect for geography lovers

Humble Pi: When Math Goes Wrong in the Real World