This updated, easy-to-read book for children explains the federal system as it works in the United States today. It also discusses why the framers of the Constitution created the U.S. government in the 18th century and the purposes it was designed to serve. Described are the Legislative branch, composed of the Senate and the House of Representatives; the Executive branch, headed by the President with the Cabinet members; and the Judicial branch, comprised of the Supreme Court of the United States and the lower federal courts throughout the nation. This edition has been revised for classroom and home use with more curriculum-aligned vocabulary and an expanded glossary; discussion questions; and a new resource guide. Young readers will learn how officials are elected or appointed and the work various government agencies do for the people's benefit. A complex process is explained in interesting terms that young readers can comprehend.