How many regions does the United States have? Which region has the most populated city in the entire country? Readers will find these answers and more as they learn about the location, geography, history, climate, wildlife, landmarks, cities, and other defining features of America's regions. Real-life photographs take readers on a trip, while a Quick Facts feature lists additional information on each region. Each title includes a table of contents, map, infographic, glossary, index, compelling What Do You Think? sidebars to encourage deeper inquiry, and reading tips for teachers and parents.