- The Crossword Puzzler's Handbook, Revised Edition: Over 1,500 Words You Need To Know
- The Gift of the Magic-and other enchanting character-building stories for smart teenage girls who want to grow up to be strong women
- A Black Hole in Uranus: and 200 other CLEAN jokes!
- Aardvark to Zygote: 1000 people, places and things you need to know to solve crossword puzzles!
- A Horse Named Peggy-and other enchanting character-building stories for smart teenage boys who want to grow up to be good men