Young puzzles can put their logical thinking skills to the test with this illustrated sudoku collection, packed with more than 80 nifty number grids.This vibrant, full-color activity book is packed with clever puzzles and humorous illustrations. It is not only entertaining but also educational, helping children develop their problem-solving and give their mental muscles a real work-out. Instructions at the front of the book explain the rules so beginners can learn pick up this classic puzzle type.Perfect for children aged 7+.