From the best-selling team that brought you The Periodic Table, Physics, Biology, and Astronomy comes a topic that's close to our hearts-literally! Meet the characters and processes that that keep the human body chugging along. From the basic building blocks like Cell, DNA, and Protein, to Bones, Muscles, and all of the fun-loving Organs, readers will cozy up with the guys on the inside. Trust us-Liver has never looked better!