Learn from home and explore the world with these fun and easy board books! Every young child loves to listen to music, bang on drums, and pound the keys of a piano. Now here's a Hello, World! board book that can teach babies and toddlers all about musical instruments and the sounds they make--with colors, shapes, sizes, and super-simple facts. Hello, World! board books introduce first nonfiction concepts to babies and toddlers. Told in clear and easy terms with read-aloud sound words (Plink! There are 88 keys on a piano, and they each make a different sound) 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 culture into the busy world of a toddler, where learning never stops.