- Sudoku Samurai: Advanced Sudokus for Experts
- Sudoku for Beginners: 40 Easy Sudokus to Exercise Your Mind
- Sudoku para Principiantes: 40 Sudokus Fáciles para Ejercitar la Mente (Spanish Edition)
- 40 Sudokus difíciles: Rompecabezas nivel experto (Spanish Edition)
- Dinosaurs Coloring Book: 50 Dinosaurs Illustrations for Kids 4-8