Your Grandma will love this 2 in 1. This series consists of three books, and each book has 50 unique large print classic Sudoku puzzles of one of the three levels of difficulty. However, in contrast to the other Sudoku books, each book has, in addition, 50 unique rectangle ornaments to color. So, each book will be good for two different activities. Both Sudoku solving and coloring are fun and entertaining, good for the brain health, have healing power and are stress relieving. It makes the books of this series just a perfect gift for either a holiday, or a birthday, or any day as a sign of your appreciation to your beloved Granny. Grab the book, add a box of colored pencils and take a ride to your Grandma's.