Grade 4

Where did everyone go? This series explores the history or mystery behind the world's most famous ghost towns and other abandoned sites. Curious readers will sort through reasons or theories… More →

Why would families living in a California mining town suddenly leave all of their possessions and abandon their homes? Similarly, why would a group of Native Americans who had spent years… More →

From rescue missions in the remote villages of Afghanistan to assignments in American cities after disasters such as the September 11 attacks and Hurricane Katrina, the men and women of the… More →

Adventurers in History introduces early fluent readers to amazing adventurers whose exploits changed the world. In these fun and engaging narrative nonfiction biographies, readers will learn… More →

You don't need a computer to learn about coding! Unplugged coding teaches many of the same skill sets needed for coding, from sequencing to conditionals, all without using a screen! Each book More →

Artificial intelligence is all around us, and new AI technology is developed every day. What is AI, how do we use it now, and how might it affect our lives in the future? AI World introduces… More →

All About Arachnids introduces readers to the world's most interesting spiders. With a high-interest STEM approach, each book focuses on a specific arachnid, detailing its anatomy, many kinds More →

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Where in the world can you ride a camel? Or visit gardens filled with bonsai trees? Where might you find the Euphrates River? Each book in All Around the World highlights a specific country… More →

What animals live in Antarctica? What landforms define the landscape of South America? Find these answers and more in these fact-filled books. A Look at Continents highlights each of Earth's… More →

They can ooze blood and cover attackers with gooey slime. Some leave predators dodging deadly quills or running from terrible stink. Animal defenses can be downright gross! Join the… More →

Where can you find some of the most amazing structures on Earth? How do engineers and architects design and build towering skyscrapers and twisting roller coasters? In this high-interest STEM More →