Eyes are the window to the soul, but they're also the window to our world. They send data to the brain, and help us navigate our physical environment. The eyes are some of the most delicate-and complex-organs. This book explores the different parts of the eye and each part's specialized function. Diagrams and photographs fascinate readers and pull them into the informative, yet friendly, narrative about our sublimely amazing eyes.

Kidneys are one of the unsung heroes of the body. Some of their jobs may not be pretty, but they are absolutely essential to the healthy functioning of our bodies. From processing waste to producing hormones that keep body systems well regulated, the kidneys are always busy. This introductory volume explains it all through kid-friendly text and cool diagrams that will invite even reluctant readers to take a look.

This book exposes children to the most exposed, yet underappreciated organ-our skin. The integumentary system is the body's first line of defense against disease and bacteria. It's also the liaison between the external world and our other invaluable body systems. This book discusses the different layers of skin and each layer's function. It explains how things can go wrong, and offers advice on ways to keep the skin and body healthy.