Book excerpt: Accessible, authoritative, and entertaining in the signature style of theComplete Idiot'sGuide® series, The Complete Idiot's Guide® to U.S. Government and Politicsprovides a wonderful foundation of knowledge about the way our country's system of government works. Understanding how our government functions and the political forces that influence it is vital for all Americans. At the high school level, U.S. government, the class formerly called civics, has evolved to become a focus of the Advanced Placement test. In 2007, the AP U.S. government and politics exam was the most widely taken test among high school students on a college track, with over 333,562 students sitting for the 3.5-hour exam. Several strictly test prep books help students prepare for this exam. However, they're limited to the key points covered by the exam and don't afford much information outside the strict curriculum. The Complete Idiot's Guide® to U.S. Government and Politics gives the reader much more. As a comprehensive overview and history of the subject, this book is designed to help anyone interested in learning about our government and the origins of its complex inner workings, our political system, and key elements that have affected our growth as a nation-all while serving as a the best supplementary reading a student can get to help them prepare for the AP exam.