Bull Puzzle Publishing
Easy Sudoku Volume 1 - 300 Puzzles with Solution- Easy Sudoku Volume 3 - 300 Puzzles with Solution
- Easy Sudoku Volume 4 - 300 Puzzles with Solution
- Easy Sudoku Volume 5- 300 Puzzles with Solution
- Large Print Sudoku Easy Volume 1 - 75 Puzzles with Solutions
- Large Print Sudoku Easy Volume 2 75 Puzzles with Solutions
- Large Print Sudoku Easy Volume 3 - 75 Puzzles with Solutions
- Large Print Sudoku Easy Volume 4 - 75 Puzzles with Solutions
- Large Print Sudoku Easy Volume 5 - 75 Puzzles with Solutions
- Large Print Sudoku Hard Volume - 75 Puzzles with Solutions
- Large Print Sudoku Hard Volume 1 - 75 Puzzles with Solutions
- Large Print Sudoku Hard Volume 4 - 75 Puzzles with Solutions