Improve your memory by playing Sudoku and color 50 Motivational & Inspirational Quotes this is the perfect way to relieve stress and promote relaxation every day It keeps you and your mind healthy and productive, gives your brain the ultimate workout, increases concentration and makes you feel happy by giving you a sense of accomplishment.This book is a fantastic gift for sudoku lovers. It is also a beautiful cheap gift for birthdays!This Sudoku puzzle book contains 200 puzzles with 4 Levels of difficulty.Other Details: ★ 50 Inspirational Quotes ★ 156 High-quality paper★ Beautiful and unique designs, no repeats★ Cover: Printed in smooth Glossy high quality color★ Size: 8.5 x 11 inch