80 books
Fun and Enjoyable Moderate and Intermediate Sudoku
Zen Sudoku
Zen Minimalist Sudoku
Elegant Sudoku
Dragon Sudoku
Large Print Sudoku - Red Level
Large Print Sudoku - Beginner
Large Print Sudoku - Intermediate
Large Print Sudoku - Easy
Large Print Sudoku - Yellow Level
Large Print Sudoku - Green Level
Large Print Sudoku - Moderate
Large Print Sudoku - Medium
Large Print Sudoku - Purple Level
Sudoku Puzzles Without Eye Strain
Little Red Book of Sudoku
Little Green Book of Sudoku
Little Blue Book of Sudoku
Little Brown Book of Sudoku
Little Orange Book of Sudoku
Mindful Sudoku
Easy To Moderate Sudoku Puzzles
Lazy Sunday Afternoon Sudoku
Breakfast Sudoku