Sometimes it's hard to find non-fiction for the preschool set, but this is a perfect book about the heart for the younger crowd. Without getting too technical it touches on the function and location of the heart and offers advice about keeping your heart healthy. It also discusses heart-relevant concepts like blood, veins, germs, disease and pulse. The large photographs and illustrations complement the copy perfectly. The other titles in this series include Brain, Lungs and Muscles.