In this beautiful nonfiction biography, a Robert F. Sibert Medal winner, the Newbery Honor–winning author Joyce Sidman introduces readers to one of the first

The story of a young girl living in the Middle Ages who took the time to observe the life cycle of butteflies--and in so doing disproved a theory that went all

“A heartbreaking, finger-gnawing, and yet ultimately hopeful novel by the amazing Rene Denfeld.” —Margaret Atwood, via Twitter After captivating readers i

Classroom Worksheets and Activities is a series of books designed to provide teachers ready to use activities with students. The focus of this book is to provid

We walk on Earth’s surface every day, but how often do we wonder about the incredible planet around us? From the molten cracks below to the shimmering moon ab