- Hard Kakuro Puzzles: The Best Logic and Math Puzzles Collection
- Kakuro Puzzle Easy: 100 Kakuro Stress Relief Puzzles
- Numbrix Puzzles for Relaxation: The Best Logic and Math Puzzles Collection
- Sudoku for Kids 8-12: 100 Sudoku Stress Relief Puzzles
- Kakuro for Beginners: The Best Logic and Math Puzzles Collection






























