An encyclopedia designed especially to meet the needs of elementary, junior high, and senior high school students.

SPACE (CHILDREN'S / TEENAGE). Encyclopedia of Space is a visual guide for children aged 8+, offering a thorough insight into our universe, astronomy and space exploration. Six fascinating sections reveal the wonders of Space, from dark matter and cosmic rays to star birth and black holes. The Solar System and beyond is explored in great detail, making this a truly comprehensive guide. An information-packed resource for school projects or homework....

A twenty-one volume encyclopedia with 32,000 entries and more than 16,000 illustrations.

With thousands of species to select from, how do you find the best plants for your garden? This guide provides a comprehensive selection table with characteristics, growth habits, and needs of each plant, as well as information on subspecies, hybrids, and cultivars. You're certain to find the right plant every time!

This fully updated reference explores more than 200 North American tribes, prehistoric peoples, and civilizations. Arranged alphabetically by tribe or group, this comprehensive work offers 60 new entries on tribes not covered in the previous editions. The accessible text summarizes the historical record and includes present-day tribal affairs and issues. The book also covers diet, housing, tools, clothing, art, rituals, and more.

Presents the major fields of science and discusses their applications in today's world.

A comprehensive illustrated guide by international experts.

Describes the physical characteristics, behavior, and habitats of alligators.