- Maybe Yes, Maybe No: A Guide for Young Skeptics
- Bringing UFOs Down to Earth
- What About Gods?
- How Do You Know It's True?
- The Snark Puzzle Book
- Wonder-Workers! How They Perform the Impossible
- Gullible's Travels
- Science in a Nanosecond
- If You Had to Choose, What Would You Do?
- Maybe Right, Maybe Wrong
- A Solstice Tree for Jenny
None published in this category.