- Of Course!: The Greatest Collection of Riddles & Brain Teasers For Expanding Your Mind
- What Am I?: A Collection of Traditional Word Riddles – Deluxe Edition
- What Am I?: A Collection of Traditional Word Riddles, Volume One
- The Best Word Search Book Ever Made (So Far): 115 Word Searches In Large-ish Print For All Ages!
- What Am I?: A Collection of Traditional Word Riddles - Volume Two









