Train the Brain: Use It or Lose It

Astrophysics for People in a Hurry

Sherlock Holmes Case-book of Curious Puzzles: A Collection of Enigmas to Puzzle even the Greatest Detective

Death by Black Hole: And Other Cosmic Quandaries

The Amazing Sherlock Holmes Puzzle Book: A Cornucopia of Conundrums Inspired by the World's Greatest Detective

The Science of Interstellar

The Penguin Book of Puzzles: Solve these wonderfully perplexing logic puzzles

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

Brain Workout: Tips and Techniques to Train your Mind

Origins: Fourteen Billion Years of Cosmic Evolution

Leonardo da Vinci Puzzles: Creative Challenges Inspired by the Master of the Renaissance

Imminent: Inside the Pentagon's Hunt for UFOs

Tutankhamun and the Puzzles of Ancient Egypt

Naomiki Sato's Origami Roses: Create Lifelike Roses and Other Blossoms

Lateral Logic: Puzzle Your Way to Smart Thinking

Endurance: A Year in Space, A Lifetime of Discovery

Sherlock Holmes Compendium of Mysterious Puzzles

How to Solve a Rubik's Cube: The Easy Solution to The Rubik's Cube, A Beginner's Guide to Solving This Puzzle, Quick and Easily! (3x3 Cube) (Rubix) (2nd Edition)

Edgar Allan Poe Puzzles: Puzzles of Mystery and Imagination

My Best Mathematical and Logic Puzzles