Each title is profusely illustrated with full-color photographs and illustrations. These titles provide a table of contents, informative sidebars, detailed maps, a glossary of key words and phrases, a comprehensive index, as well as sources for further research. These enhancements make the series invaluable for supplementing a classroom or homeschool curriculum. Schools and libraries are strongly advised to acquire the entire eight volume series for their Pets and Wildlife reference collections for young readers.