Everyone’s fascinated by T. Rex and wants to know what this big, fearsome creature was really like. How tall was it? How much did it eat? Did it have scales or feathers? Find out! This brilliant exploration of the world’s scariest dinosaur offers loads of eye-opening facts and fun comparisons—for example, a T. Rex was as long as six lions and its teeth were as big as bananas—that budding paleontologists will love!

    but even the most loyal cat owners are often baffled by their own pet's behavior. With veterinarian expert Dr. Gary Weitzman as guide, this fun book helps kids understand what cats are trying to communicate by their body language and behavior. So if you've ever wondered what Fluffy means when she's purring or moving her tail emphatically from left to right—this book is for you! It's full of insights, expert advice, and real-life cat scenarios, and showcases more than 30 poses, so you'll soon learn what each meow and flick of the tail means!

    Spring births a polliwog that becomes a "full frog"; in summer, wildflowers choreograph an extravaganza; autumn's apples are found in generations of people's pockets; and winter's snowfall makes inanimate objects more beautiful than we could ever imagine. In addition to master poets Carl Sandburg, Richard Brautigan, Joseph Bruhac, and Karla Kuskin, twnety-nine of the poems have been especially commissioned by a host of contemporary poets such as Rebecca Kai Dotlich, Joan Bransfield Graham, J. Patrick Lewis, and Marilyn Singer. The exciting, bold palette of Caldecott Medallist David Diaz brings the seasons to life and asks us to look at the seasons all over again, for the first time.

    And then one night she saw something unusual: a comet no one had ever seen before! Miss Mitchell’s extraordinary discovery made her famous the world over and paved the way for her to become America’s first professional female astronomer. Gorgeously illustrated by Diana Sudyka, this moving picture book about a girl from humble beginnings who became a star in the field of astronomy is sure to inspire budding scientists everywhere.

    A rat-a-tat speaker, Melvil was a persistent (and noisy) advocate for free public libraries. And while he made enemies along the way as he pushed for changes--like his battle to establish the first library school with women as students, through it all he was EFFICIENT, INVENTIVE, and often ANNOYING as he made big changes in the world of public libraries--changes still found in the libraries of today!

    The roots of our family tree reach back millions of years to the beginning of life on earth. Open this family album and embark on an amazing journey. You'll meet some of our oldest relatives--from both the land and the sea--and discover what we inherited from each of them along the many steps of our wondrous past. Complete with an illustrated timeline and glossary, here is the story of human evolution as it's never been told before.