The best bang for your buck - this big bargain book gives you many hours of puzzle solving joy. From a trusted David Karn Sudoku collection! FOUR DIFFICULTY LEVELS: Easy, Medium, Hard, and Expert levels make it both challenging and give you ample opportunity to work your way up the difficulty scale. EASY TO READ: Even though we crammed lots of puzzles into this edition, the digits in the puzzles are still a large 16 point size. Most of us can read that without the glasses! SOLUTIONS: If you get stuck, there are solutions in the back of the book. You might need the glasses for those, but you probably won't even look at them anyway! WIDER CENTER MARGIN: Our careful layout gives you more room in the middle of the book so you can easily write, fold the pages, or even tear them out. A GREAT GIFT ❤️❤️❤️ If not for your own addicition, puzzles are perfect gifts for parents, grandparents, elderly, or anyone stuck in a hospital. They make wonderful birthday gifts, stocking stuffers, and are a great value as presents for any occasion. Click that ADD TO CART button right now! However, if this is NOT what you're looking for, we have many other types of books: various single and mixed difficulty levels (from Beginner to Extreme), Large 8.5x11" format and Travel 5x8" small format, large and EXTRA large font sizes, editions with flowers, for the elderly, seniors, grandmas, grandpas, and mini sudoku for kids combined with coloring books featuring dinosaurs, pirates, and unicorns. Just search for "David Karn Sudoku" and you'll find it!