Most Popular Books
- MAXIMUM ACTIVITY Mixed puzzle book: Variety Puzzles Book, Word Search, Sudoku, Mazes, Cross Words and Cryptograms, 150 unique puzzles
- Maximum Activity: Sudoku puzzle book for adults easy to expert, 9x9 Sudoku puzzles with solutions, Beginner to Expert Sudoku
- Maximum Activity 9x9 Sudoku easy to medium: Beginner Sudoku with solutions, Easy Sudoku puzzle book, 480 puzzles, Free BONUS inside
- Maximum Activity 9x9 Sudoku hard to expert: Difficult Sudoku for advanced, 480 total puzzles for adults, BONUS Extreme Sudoku
