Sudoku Puzzle Book, 800 Puzzles, 400 EASY and 400 MEDIUM: Improve Your Game With This Two Level Book in Bloomington, MN

You might not be an Einstein but you can really sharpen up your mind and improve your memory by playing Sudoku every day. Sudoku stimulates your mind by helping you practice your logical thinking process, increases concentration and makes you feel happy by giving you a sense of accomplishment. It has also been shown to reduce the chance of developing Alzheimers.
So pick up a Sudoku book today and improve your brain power!