"A 22-volume, highly illustrated, A-Z general encyclopedia for all ages, featuring sections on how to use World Book, other research aids, pronunciation key, a student guide to better writing, speaking, and research skills, and comprehensive index"-- Provided by publisher.

"This comprehensive guide charts an incredible historical journey through the centuries, from the Indigenous peoples, to the founding of a new country and the war that divided it, to America's extraordinary impact on the world today. With the complete texts of the Declaration of Independence, the Constitution, and the Gettysburg Address, as well as state-by-state information, this groundbreaking reference book shows how the country's present and future...

"Go on a journey through the Star Wars galaxy, and learn all about its brave heroes and deadly villains. Meet a host of loathsome creatures, weird aliens, and loyal droids from the Star Wars saga"-- Back cover.

"Alphabetically arranged set presents profile of individual nations and other political/geographic units including overview of history, geography, economy, people, culture, and government for each. Includes cumulative index and web site resources"--Provided by publisher.

"Readers will get an in-depth look at the critical components that make up space. Alongside engaging photos, readers will learn about planets, the moon, the sun, stars, asteroids, comets, meteoroids, galaxies, the universe, and the exciting field of space exploration. Features include a glossary, additional resources, and an index." --publisher's website.

Provides information about the physical characteristics, habits, and behavior of such animals as invertebrates, fish, amphibians, reptiles, birds and mammals.

Offers a history of space exploration by missions from around the world. Annotation. Since the lift-off of Sputnik in 1957, over 8,000 satellites and spacecraft have been launched from over thirty countries, costing hundreds of billions of dollars. While only about 350 people have made the incredible journey beyond our atmosphere, we all benefit in countless ways from the missions. An authoritative and accessible source that collects information on...

Presents basic scientific concepts with basic definitions of common terms clearly explained in simple language and colorful illustrations.

Presents information about animals ranging from vampire bats and tarsiers to oarfish and bumblebees.