- Number Search: Puzzle Book for Seniors and Adults VOLUME 1
- Number Search: Puzzle Book for Seniors and Adults VOLUME 2
- Number Search: Puzzle Book for Seniors and Adults VOLUME 7
- Number Search: Puzzle Book for Seniors and Adults VOLUME 8
- Kakuro Number Fill-In Puzzles Crossword-Like Puzzles Using Numbers Instead of Words: 120 Cross Sums Number Logic Games for Adults and Teens VOLUME 9






















