Sudoku Coloring Book For Kids: Space Theme Puzzles 4x4, 5x5, 6x6, 7x7, 8x8, 9x9 Grids From Beginner to Advanced

This is truly a kid's sudoku book like no other. The is a very nice and easy introduction to the world of brain teaser and number games for kids aged 4-12 years with a variety of fun pages illustrations.