Why does the Moon change shape? Why does it sometimes disappear? Children will love this book about our Moon. More →

The first moon landing is one of the most important moments in United States history. Everything changed after July 20, 1969, when Apollo 11 touched down on the moon's surface and allowed… More →

More than 2,300 years ago, the Greek philosopher Plato wrote about a glorious ancient city that sank without trace beneath the waves. Ever since that time people have wondered where this lost More →

Why would the ghosts of two crewmen who died in a 1972 air crash in the Everglades appear to other aircrafts flying the same route? This book tells the stories of the people who believe they… More →

This visually exciting book takes a unique look at our globe from the perspective of the wildlife and geology of Earth. Using an innovative design, maps are populated by infographics, graphs, More →

The Nile is the world's longest river and the birthplace of one of the greatest civilizations of the ancient world. This book takes readers along the "River in the Sand" as it flows north… More →

Nitrogen is a common element found as a gas in the air we breathe as well as in other forms in water and soil. Nitrogen is essential for all life on Earth. This informative book explains how… More →

Oceans and seas form the marine biome, which is the world's largest biome. It covers three-quarters of the Earth's surface and reaches from the far north to the far south of the planet. The… More →

Theodore Weld was an early agitator for abolition. This book describes how Weld successfully forced the issue of slavery into the forefront of people's consciousness through speeches and… More →

A new title in this series highlights the venue for the upcoming 2012 Summer Olympics in London, England. This entertaining series provides children with a fascinating overview of the 28… More →