Time Traveler: A Scientist's Personal Mission to Make Time Travel a Reality

How to Build a Time Machine: The Real Science of Time Travel

Now: The Physics of Time

Parallel Worlds: A Journey Through Creation, Higher Dimensions, and the Future of the Cosmos

Physics of the Impossible: A Scientific Exploration into the World of Phasers, Force Fields, Teleportation, and Time Travel

Ancient Knowledge

Three Uses of the Knife: On the Nature and Purpose of Drama

So You Created a Wormhole: The Time Traveler's Guide to Time Travel