This Sudoku puzzle book provides hours and hours of entertainment and math skills building challenges for your child and loved ones. Also, we've lovingly designed this book with your convenience and satisfaction in mind and thought about the small details that makes a difference: 1. Large font and easy to read Large font and easy to read Compact size, easy to carry anywhere. High quality paper Big Sudoku grids with large squares with plenty of room to make notation Easy to tear out, thanks to wide margins. If you find it more convenient to solve the puzzles this way, you can easily cut or rip out the pages 2. Includes tips on how to solve the puzzles The book introduction includes detailed instructions and tips for solving Sudoku puzzles using a step-by-step example that anyone can follow. Although this book is primarily designed for kids ages 8-12, the instructions allows this book to be picked up by any person with any skill level 3. Well organized with gradual difficulty levels Includes well-labeled super easy to medium sections with different grid sizes. Starting children out with super easy 4x4 puzzles, this book progressively challenges the reader with harder and harder puzzles. After conquering the 4x4 grid, readers then get to take on the 6x6 and the popular 9x9 sudoku puzzle. Includes 30 4x4, 20 6x6, and 20 9x9 puzzles (70 total) Problem levels has been thoroughly assessed for consistency We've also included the answers at the end of the book If you LOVE Sudoku, you can't go wrong with this one. Get your copy now!