The Sudoku Book For Smart Kids! This book contains 200 Sudoku puzzles of varying difficulties to get you solving puzzles in no time! · 200 Sudoku puzzles of varying sizes · 6x6 puzzles · 4 different difficulty levels · Designed for kids eight and older, but great for beginners of all ages! · Great gift, and a great travel book for a long car or plane ride · Clean and easy-to-read in a comfortable layout; no crammed pages This is a great way to teach children how to have fun with numbers at a young age, instead of growing up intimidated by them! This book is designed to be a great way to start kids ages 8-12 on Sudoku, but it is good for beginners of all ages. It should provide enough difficulty as the book progresses to keep even older kids challenged and amused.