42 books
Hard Sudoku Puzzles
Easy Sudoku Puzzles
Cryptogram Puzzles Book
Cryptograms
80 Large Print Easy Sudoku Puzzles
80 Large Print Hard Sudoku Puzzles
80 Large Print Medium Sudoku Puzzles
Sudoku Puzzles Book
Sudoku Puzzle Book
Large Print Sudoku Puzzles
200 Sudoku Puzzles
Funny Cryptograms Puzzle Book
My Favorite Sudoku Book
Book of Sudoku
Mega Sudoku Book
200 Sudoku for Advanced
200 Sudoku for Intermediate
200 Sudoku for Beginners