This nonfiction book introduces middle-grade readers to the effects of light pollution. Illustrated with photos throughout, it examines why darkness is important for plants, animals and people, and the practical things we can do to protect the night sky for all ecosystems on the planet.

Stephen Aitken is a biologist, artist and science writer who has been creating children's books for the past 15 years. Stephen's books and articles are inspired by the wonders of the natural world. He has explored the forests, oceans and mountaintops of the world at all times of the day and night. Stephen is the co-founder and executive secretary of the charity Biodiversity Conservancy International and senior editor of the journal Biodiversity. He lives in Ottawa.