83 books • 2 series
Book #1: Travel Sudoku Puzzle Book for Women
Book #1: Easy Sudoku Puzzles Book For Middle School Riddles 300+
Book #2: Medium Sudoku Puzzles Book Middle School Riddles 300+
Book #3: Hard Sudoku Puzzles Book For Middle School Riddles 300+
Book #4: Easy Sudoku For Middle School Puzzles 16x16
Book #5: Medium Sudoku For Middle School Puzzles 16x16