Hear Your HeartBy: Paul Showers Illustrator: Holly Keller Series: Let's Read and Find Out Science 2 Read and find out about how your heart works in this colorfully illustrated nonfiction picture book. Night and day, whether you're asleep or awake, your heart is always beating. This overview of how the heart works is a good overview for youg readers. Hear Your Heart also includes a find out more section on how to measure your heart rate, how to exercise your heart,