harpercollins

Manny and Ellie are having a baby, and everyone is excited. With two possums, a sloth, and a saber-toothed tiger to love her, this little mammoth w...

Light is all around you! It comes in many forms: Light from the sun brightens our day, firelight flickers in the night, electric lights fill our ho...

Follow that garbage truck! ...to the landfill to see how trash keeps piling up...to the incinerator to see how trash can be turned into energy ... ...

What's inside that pretty blue egg? A baby bird is growing inside that egg. Slowly the bird develops, until one day it cracks through the shell. Sa...

Can you make an ice cube disappear? Put it on a hot sidewalk. It melts into water and then vanishes! The ice cube changes from solid to liquid to g...

Accompanied by NASA photographs and Dorros's colorful, lively drawings, the text explains the Earth's rotation in clear and simple terms. An experi...

A reassuring bedtime story from the author of the phenomenally bestselling picture book, ‘Guess How Much I Love You’. Anna-Sophia's dad says he wil...