Hui Li

After learning how to draw Chinese characters, Lulu and her dog Dumpling step into a magical world where the characters come to life.

When you feel like running, leaping, and singing, people might say you have a lot of energy. And you're not the only one! Energy is the stuff that makes everything live and move. People, animals, plants - we all need energy to live!

Earth is our home, but do we really know about this planet? Quite a lot! We know how the Earth came to be the planet we live on, how oxygen made it possible for life to develop, and how the climate is changing in ways that affect everyone and everything. In The Earth: One-of-a-Kind Planet, the narrator, who just happens to be the Universe, explains where Earth is located in the solar system, how life evolved on Earth, and more. Universe uses a friendly,...

You can find waves just about everywhere you look! Take a tour of the world of waves in this fun, illustrated introduction to the concept of waves and energy.