Most Popular Books
- 400 Variety Puzzle Books for Adults: Numbricks, Hidoku, Calcudoku, Hitori
- 250 Easy to Medium Numbricks puzzles 9x9 (Volume 6)
- 100 Large-Print Easy Numbricks Puzzles Book For Adults: One puzzle per page with room to work (Volume 1)
- 1000 Hard Sudoku Puzzles 9x9: Sudoku Puzzle Book for Adults
- Numbricks Puzzle Book: The Ultimate Numbricks Challenge - 1000 Puzzles (Volume 1)
