What is the nature of law and what is the best way to discover it? This book argues that law is best understood in terms of the social functions it performs wherever it is found in human society. In order to support this claim, law is explained as a kind of institution and as a kind of artefact. To say that it is an institution is to say that it is designed for creating and conferring special statuses to people so as to alter their rights and responsibilities toward each other. To say that it is an artefact is to say that it is a tool of human creation that is designed to signal its usability to people who interact with it. This picture of law's nature is marshalled to critique theories of law that see it mainly as a product of reason or morality, understanding those theories via their conceptions of law's function. It is also used to argue against those legal positivists who see law's functions as relatively minor aspects of its nature. This method of conceptualizing law's nature helps us to explain how the law, understood as social facts, can make normative demands upon us. It also recommends a methodology for understanding law that combines elements of conceptual analysis with empirical research for uncovering the purposes to which diverse peoples put their legal activities.

Law for Society: Nature, Functions, and Limits offers an illuminating conceptual framework that looks at five basic legal instruments with which the law addresses the problems and goals of society. For any Introduction to Law course or as secondary reading in political science, criminal justice, or general studies, Law for Society breaks down the very concept of “law” to answer the questions: What is law? How does law work? What can law do and not do? The book addresses the nature of law, its problem-solving functions, and the limits on what law can accomplish.

Common law rules predominate in some areas of law, such as torts and contracts, and are extremely important in other areas, such as corporations. Nevertheless, it has been unclear what principles courts use—or should use—in establishing common law rules. In this lucid book, Melvin Eisenberg develops the principles that govern this process.

'Human laws must be reformulated to keep human activities in harmony with the unchanging and universal laws of nature.' This 1987 statement by the World Commission on Environment and Development has never been more relevant and urgent than it is today. Despite the many legal responses to various environmental problems, more greenhouse gases than ever before are being released into the atmosphere, biological diversity is rapidly declining and fish stocks in the oceans are dwindling. This book challenges the doctrinal construction of environmental law and presents an innovative legal approach to ecological sustainability: a rule of law for nature which guides and transcends ordinary written laws and extends fundamental principles of respect, integrity and legal security to the non-human world.

When asked why people obey the law, legal scholars usually give two answers. Law deters illicit activities by specifying sanctions, and it possesses legitimate authority in the eyes of society. Richard McAdams shifts the prism on this familiar question to offer another compelling explanation of how the law creates compliance: through its expressive power to coordinate our behavior and inform our beliefs. “McAdams’s account is useful, powerful, and—a rarity in legal theory—concrete...McAdams’s treatment reveals important insights into how rational agents reason and interact both with one another and with the law. The Expressive Powers of Law is a valuable contribution to our understanding of these interactions.” —Harvard Law Review “McAdams’s analysis widening the perspective of our understanding of why people comply with the law should be welcomed by those interested either in the nature of law, the function of law, or both...McAdams shows how law sometimes works by a power of suggestion. His varied examples are fascinating for their capacity both to demonstrate and to show the limits of law’s expressive power.” —Patrick McKinley Brennan, Review of Metaphysics