Hello, World! is a series designed to introduce first nonfiction concepts to babies and toddlers. Told in clear and easy terms ("T. rex's arms were very small, even though its body was large") and featuring bright, cheerful illustrations, Hello, World! makes learning fun for young children. And each page offers helpful prompts for engaging with your child. It's a perfect way to bring science and nature into the busy world of a toddler, where learning never stops. Look for all the books in the Hello, World! series: Solar System, Weather, Backyard Bugs, Birds, and My Body.