192 books • 21 series
Book #1: The Big Book Of Sudoku
Book #1: Jigsaw Sudoku 144 - Hard 9x9
Book #2: Jigsaw Sudoku 144 - Hard 9x9 release #2
Book #2: Jigsaw Sudoku 144 - Ultra Hard 9x9 release #2
Book #2: Jigsaw Sudoku 200 - Hard 9x9 release#2
Book #1: Jigsaw Sudoku 200 - Medium 9x9
Book #1: Jigsaw Sudoku 200 - Ultra Hard 9x9
Book #2: Jigsaw Sudoku 200 - Ultra Hard 9x9 release#2
Book #1: Jigsaw Sudoku X 200 - Hard 9x9
Book #2: Jigsaw Sudoku X 200 - Hard 9x9 release #2
Book #3: Jigsaw Sudoku X 200 - Ultra Hard 9x9 relese#3
Book #4: Jigsaw Sudoku X 200 - Ultra Hard 9x9 release#4
Book #1: Killer Sudoku - 200 Easy
Book #2: Killer Sudoku - 200 Easy relese#2
Book #2: Killer Sudoku-200 HARD relese#2
Book #1: Killer Sudoku Jigsaw 200 - Hard 9x9
Book #3: Killer Sudoku Jigsaw 200 - Hard 9x9 release#3
Book #4: Killer Sudoku X 200 HARD 9x9 release4
Book #14: Sudoku Puzzles Mix 150 - Easy, Medium, Hard, 9x9 2
Book #15: Sudoku Puzzles 144 - Ultra Hard 9x9 4
Book #1: Sudoku Puzzles 100 - Ultra Hard 16x16
Book #2: Sudoku Puzzles 144 - Easy 9x9 release #2
Book #2: Sudoku X 144 - Hard 9x9 release #2
Book #1: Sudoku X 144 - Ultra Hard 9x9
Book #1: Sudoku X 200 - Medium 9x9
Book #1: Sudoku X 200 - Ultra Hard 9x9
Book #2: Sudoku X 200 - Ultra Hard 9x9 release#2