Most Popular Books
- Number Fill-Ins - Volume 1: 100 Fun Crossword-style Fill-In Puzzles With Numbers Instead of Words
- Samurai Sudoku Difficult Puzzles - Volume 1: 100 Difficult Samurai Sudoku Puzzles for the Experienced Solver
- Samurai Sudoku Medium Puzzles - Volume 1: 100 Medium Samurai Sudoku Puzzles for the Casual Solver
- Number Fill-Ins - Volume 2: 100 Fun Crossword-style Fill-In Puzzles With Numbers Instead of Words
- Just Sudoku Multi-Level Puzzles - Volume 1: 200 Sudoku Puzzles - 50 Each of Easy, Medium, Difficult, and Expert Level - For the Sudoku Lover Who Likes a Choice
