"In graphic novel format, follows Peter Pea as he travels through and explains the workings of the human digestive system"--

"In graphic novel format, follows Ruby the red blood cell as she travels through and explains the workings of the human circulatory system"--

"In graphic novel format, follows Molly and Ollie Oxygen as they travel through and explain the workings of the human respiratory system"--

"In graphic novel format, follows Nelly Neuron as she travels through and explains the workings of the human nervous system"--