Kathryn Clay Libri

Did you know a hippopotamus swims to keep cool? Read to learn why a hippopotamus must keep cool and other facts about this mammal.

What's a spacewalk? Step outside your space vehicle, and you're spacewalking! Whether you're collecting samples, fixing equipment, or sightseeing, spacewalking is an out-of-this-world experience!

Baby chicks hatch. Frogs lay eggs. Ducklings waddle. Spring is here! Celebrate the season with lovely photos and a simple design that beautifully support early readers.

Young readers will explore the fascinating world of construction through simple text and vibrant photographs. The book introduces eight different vehicles commonly used on construction sites, making it an engaging way for children to learn about these powerful machines and their functions in building and infrastructure projects.

"Illustrations of American Sign Language, along with labeled photos, introduce children to words and phrases for feelings, holidays, manners, body parts, and more"--Provided by publisher.

The Declaration of Independence has represented American freedom since Thomas Jefferson wrote it more than 200 years ago. Using primary sources, young readers hear the story behind one of America's most important documents from the people who were there when it was signed. Engaging text, colorful images, sidebars, and a variety of primary sources introduce readers to the Declaration of Independence.

Want to go to space? Before launch, you've got some work to do! Find out what scuba diving, medical skills, and survival training all have to do with being an astronaut. Then it's 3-2-1 lift off!

From the classroom to the lunchroom, take a trip around your school and learn to sign along the way. What's the sign for backpack? Or for clock? Learn helpful words for the bus stop, library, playground, and more.

"Simple nonfiction text and full-color photographs present planting seeds in spring"--

Tiny robots include everything from a wall climbing microbot to a nanobot that goes inside the human body. Find out just what these awesome machines can do.