Most Popular Books
- ULTIMATE SUDOKU CHALLENGE, Series One, 1001 Beginner Puzzles, Difficulty Level 1
- WORLD's BEST SUDOKU CHALLENGE, Series One, 1001 Beginner Puzzles, Difficulty Level 1
- WORLD's BEST SUDOKU CHALLENGE, Series One, 1001 Starter Puzzles, Difficulty Level 2
- 2020 Sudoku Puzzles For 2020
- 2020 Sudoku Puzzles For 2020 : Beginner to Expert