David Karn
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David Karn Sudoku – Easy & Medium Vol 2: 104 Puzzles, Travel Size, Large Print, 36 pt font size, 1 puzzle per page
David Karn Sudoku – Beginner to Medium Vol 1: 120 Puzzles, Large Print, 36 pt font size, 1 puzzle per page
David Karn Easy Large Print Sudoku Puzzle Book for Grandmas: 120 Puzzles With Solutions – Improve your memory, delay dementia, reduce risk of Alzheimer's – 36 pt font size, 1 puzzle per page
David Karn Sudoku – Beginner to Medium Vol 2: 96 Puzzles, Travel Size, Large Print, 36 pt font size, 1 puzzle per page