6Say "Hello" to Hank the Heart! Loyal. Strong. Kind of blobby. Learn all about your heart from our lovable friend, Hank: what it's made of, how it works and stays healthy, and ways it can be different. A perfect book to share and explore for young readers, budding scientists, and kinder-cardiologists. Most importantly, Hank will teach you why each heart is special and a part of what makes you so lovable!