The United States is the world's third-largest country in terms of both size and population, which is one of the world's most ethnically and socially diverse. It also has the most powerful and technologically advanced economy in the world, and its per-capita income ranks among the world's highest. Its climate is equally as rich and varied: although mostly temperate, there are a number of other climates, including tropical, arid, and polar. In addition, the country's terrain varies widely and includes plains, piedmont, mountains, and deserts. These facts and much more are highlighted in ""The United States"". This appealing new book is filled with eye-catching features, such as full-color photographs and detailed maps, making it the ideal exploration of the people, culture, history, geography, environment, economy, and government of this multifaceted nation.