How do muscles move your bones? Why do muscles sometimes ache? Find out in this amazing look at the Muscular System. The book also includes a page for caregivers and teachers that suggests… More →

Nellie Bly was known as an investigative reporter, but what about before that? Find out what happened when Bly was younger, and what she did that made her famous later on. More →

How is the nervous system like a super computer? What connects your brain to the rest of your body? Find out in this fascinating look at the body's Nervous System. The book also includes a… More →

Which continent has the Great Lakes--the world's largest freshwater area? North America! Find out about North America's landforms, people, animals, and much more in this book. More →

What is nuclear power? How is splitting atoms used to make electricity for our homes? Nuclear Power answers these questions and much more! More →

Readers will be fascinated by this entertaining and informative series, which shines a spotlight on some of the world's oddest birds. The character Professor Oddfeather offers amusing facts… More →

How do penguin colonies care for their young? Why do great blue herons migrate in groups? How do prairie dogs warn others of danger? Discover the answers in this interesting book and learn… More →

From orcas and emperor penguins to white-tailed deer and spotted hyenas, many animal species live, hunt, raise young, and protect themselves in groups. With eye-catching images and carefully… More →

Discover the remarkable world of Reptiles. Amazing photographs of different reptiles highlight where reptiles live, how they grow, how they move, and what they eat. The book also includes a… More →

Why do you breathe in and out? How many breaths do you take in a day? Find out in this interesting look at the Respiratory System. The book also includes a page for caregivers and teachers… More →