The Law of the United States offers an introduction and overview of the American legal system. With an emphasis throughout on up-to-date case law and current literature, it is an ideal first point of entry for students and practitioners alike, and a starting point for further independent research.

Professor Hay provides a concise and straightforward explanation of the law and legal vocabulary, as well as an introduction to the different types of law and legal techniques. He explains the role of Congress, the Executive and the Courts, and clarifies the mechanisms behind the branches of public and private law in the United States. He introduces the reader to the complexities of federal and state law, emphasizing that the many areas of public law and virtually all areas of private law are the separate law of the 50 States, the District of Columbia, and the (U.S.-dependent) Territories in which common language, legal tradition, and culture have served to bring about a basic legal unity. Several private law areas (contract law, torts, family law, succession) receive detailed treatment, as do criminal law and procedure.

The book provides detailed references to legislation, case law, and the literature, up-to-date through early 2016. Four appendices present a detailed case study with commentary to aid the civil law reader in understanding of the case law system; the text of the U.S. Constitution (referred to in several contexts throughout the book); a geographic map of the U.S. federal court system; and information on the Legal Profession in the United States.