93 books • 25 series
Book #1: Let's Get Lost Sudoku Puzzle Book
Book #1: Sudoku Travel Size Book 100 Medium Puzzles Quick Creative
Book #1: Sudoku Vibes
Book #2: Sudoku Vibes Volume 2
Book #3: Sudoku Vibes Volume 3
Book #4: Sudoku Vibes Volume 4
Book #5: Sudoku Vibes Volume 5
Book #1: Twenty Twenty
Book #1: Extreme Sudoku For Women Volume 1
Book #2: Extreme Sudoku For Women Volume 2
Book #3: Extreme Sudoku For Women Volume 3
Book #4: Extreme Sudoku For Women Volume 4
Book #5: Extreme Sudoku For Women Volume 5