Most Popular Books
- 400 Variety Sudoku Puzzle Books for Adults: Classic Sudoku, Sudoku X, Jigsaw Sudoku, Windoku
- Numbricks Puzzle Book: The Ultimate Numbricks Challenge - 1000 Puzzles (Volume 1)
- 250 Easy Numbricks puzzles 8x8
- 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)
