The world is in grave danger after NASA discovers a massive icy body larger than New York City is headed straight for Earth. Dr. Robert Miller of NASA must figure out a way to save the world.

Tommy Oliver was new in town when evildoer Rita Repulsa made him the Green Ranger. After escaping her mind control, he hopes for a normal life, which isn't easy to do with the plights of high

This fun and fact-packed series introduces readers to the exciting world of mixed martial arts. From the stars of the sport to the thrilling world of UFC, each book explores the history,…

In a world where insects have evolved to become larger than humans, a group of teens discovers a threat to the bug population that could alter the fate of the entire planet. With the help of…

This series introduces readers to the special vehicles used in motorsports, how they are built, and what makes them cool. Readers will learn about the history of their favorite motorsports,…

Encourage readers' curiosity for the natural world with the North American Field Guides. Whether they're in the classroom or taking a nature walk, readers will have all the information they…

Take a walk in the woods or along the shore and discover a world full of beautiful seashells, deadly mushrooms and plants, and edible tidbits straight out of the ground! In the North American

In spring, pink-and-white flowers bloom on a crabapple. In summer, a garter snake slithers through tall grass. A squirrel buries acorns amid fallen oak and maple leaves in the fall. In…

Since 1896, the modern Olympic Games have thrilled onlookers around the world. From the pool to the gym to the track, the Games have showcased many inspiring athletes and amazing stories.…

Meet the stars who shine the brightest on the track, in the pool, and in the gym. This series will introduce young sports fans to some of world's most successful Olympic athletes. Learn how…

Meet the stars who shine the brightest in international competition. This series will introduce young sports fans to some of world's most successful Olympic athletes. Learn how they became…

Meet the stars who shine the brightest in international competition. This series will introduce young sports fans to some of world's most successful Olympic athletes. Learn how they became…