- Samurai Sudoku Puzzle Books Hard To Very Hard Large Print: 250 Puzzles for seniors with solutions.
- Samurai Sudoku Puzzle Books Medium Large Print: 250 Puzzles for seniors with solutions.
- Wortsuchrätsel für Erwachsene und Senioren Großdruck: 100 Wortsuchrätsel Mit Lösung. (German Edition)
- Sudoku Books for Adults Hard to Very Hard Large Print with Answers: 600 Sudoku Puzzles to Train your brain.
- Sudoku Large Print for Seniors: 600 Sudoku Puzzles Medium to Hard with solutions to Train your brain.













