North America's Sonoran Desert is home to one of the most amazing plants in the world: the saguaro cactus. When settlers and their cattle almost destroyed the saguaro forests, Congress created the Saguaro National Monument, now Saguaro National Park. Learn about the amazing plant and animal life in this beautiful desert area. Animals. American History. Earth Science. Geography. Health. Space. True Books covers all this and more in photo-filled chapter books that provide a basic introduction to curriculum-relevant topics. Ideal for today's young investigative reader, each True Book includes lively sidebars, a glossary and an index, plus a comprehensive "To Find Out More" section listing books, organizations, and Internet sites. A staple of library collections since the 1950s, and redesigned with a fresh new look in 1996, the new True Books series is the definitive nonfiction series for elementary school readers.