Love this book! For so many reasons, this is a favorite in our family. A solid level 3 reading book, my son loves it because of the fun story line (bacteria pleading with us to eat more candy and snacks) and because of the rhyming throughout, which he absolutely loves. I love it because it teaches so much. It teaches about teeth, how to take care of them, and what not to do. It also has great new vocabulary words for the level 3 reader such as decay, bacteria, and plaque. Overall a great educational book and interesting to boot! A great add to any collection!