Are health and happiness part of your resolutions for 2019? According to the Mayo Clinic: “Research shows laughter provides a good physical workout, generates mental relaxation, lowers blood pressure and pain, and even improves immunity.” With that in mind, all of our current in stock Ladybird/How it Works books are buy one, get one FREE while they last. Who knew that reading about calling in sick could actually improve your health?! At the very least, it will generate a good laugh.