Grade 4

Are you ready for the smackdown? Growing readers can learn about professional wrestling superstars, their moves, and their victories in this low-level series. From signature moves to final… More →

This series introduces readers to eight popular contemporary wrestlers, covering their early lives, wrestling careers, skills, and signature moves. Each title features informative sidebars,… More →

Whether it's snowboarding down a huge mountain or surfing a massive wave, X-Moves will have readers on the edge of their seats. Each book in the series showcases some of the most incredible… More →

As gripping as the screeching winds from a ferocious storm, X-treme Disasters That Changed America recounts the destructive force of some of America's worst natural disasters. Told in a… More →

Did you know the yo-yo was invented in Ancient Greece? Or that people in China have used chopsticks to eat with for more than 4,000 years? Learn these cool facts and so much more in this… More →

Did you know that about 75 percent of the world's freshwater is frozen in Antarctica? Or that the Great Barrier Reef is the largest living structure on Earth? Explore the extreme world around More →

Have you heard of the dam so massive it actually added a fraction of a second to every day? Or seen the bridge that literally disappears below the ocean? Explore these extreme feats of… More →

Did you know one spinning storm over the sea was wide enough that it could have stretched across the entire United States? And have you heard about tornadoes made of water, fire, or snow?… More →

Did you know a hippo can bite a crocodile in half? Or that lightening is five times hotter than the surface of the sun? Learn these cool facts and so much more in this engaging science… More →

Did you know that the planet Mercury is slowly shrinking? Or that people grow a little taller while in space? Learn these cool facts and so much more in this engaging series all about space.… More →

Did you know earlier colonists had to eat shoe leather to survive? Or that George Washington didn't really want to be president? Learn these cool facts and so much more in this engaging… More →

Journey to the world's most extreme places in this fact-filled look at our mighty landforms. Young readers will climb to the heights of Mt. Everest, venture through the blazing heat of the… More →