'Before the zoo opens each day a small army of keepers, vendors, and maintenance workers perform the daily tasks of cleaning and setting up. Then the crowds flock in. . . . The busy pictures are filled with details and action. The writing is crisp, clear, and informative.' --SLJ.

Outstanding Science Trade Books for Children 1987 (NSTA/CBC)

Here is a fascinating journey through those dark, mysterious hollow places on earth--sea caves, lava caves, ice caves, and more. Caves and Caverns also includes information on where to go, what to bring, and how to have a safe, exciting spelunking adventure of your own. This title will be enjoyed by budding scientists and explorers. --School Library Journal
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"The brighly colored drawings will attract young readers and provide a first look at libraries--with all their complexity and excitement."--Booklist

This book about nature and the changing seasons focuses on a young boy and a very special apple tree. In Gail Gibbons's bright illustrations, Arnold collects apple blossoms in spring, builds a tree house in summer, makes apple pie and cider in the fall, and hangs strings of popcorn and berries for the birds in winter, among other seasonal activities. Includes a recipe for apple pie and a description of how an apple cider press works.

Simple language and bold illustrations make this a fun and informative book about the sun. Add this one to primary-grade science shelves. --Booklist
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In words and pictures, this book captures all the excitement and adventure of the Wild West. Gibbons's colorful watercolors deftly recreate cowboys clothing, equipment, and lifestyle, and the lively text includes descriptions of famous cowboys and cowgirls, as well as historical facts. Full color.

A look at the life of knights in the Middle Ages and a collection of tales about their adventures.

A bright and colorful introduction to trees, leaves, and their inner workingsin nature. Illustrations.

Explains the process of recycling from start to finish and discusses what happens to paper, glass, aluminum cans, and plastic when they are recycled into new products.

Gibbons describes the climatic conditions of the rain forest as well as the different layers of plants and animals that comprise the ecosystem.