A dark sky is one where artificial light does not interfere with the view of the natural starry environment. One hundred years ago, anyone could look up at the night sky and see thousands of stars above, but due to the increased and widespread use of artificial light over the last century, 80 percent of the world's population lives under skyglow, and in the United States and Europe, 99 percent of the public can't experience a natural night. If You Can See The Dark--the first ever children's picture book from the Appalachian Mountain Club--teaches children about the importance of dark skies for animals, plants, and ourselves. Paired with stunning and evocative art, kids learn about dark skies in a way that will resonate with kids and adults alike.