Fifty years on from its original publication, HLA Hart's The Concept of Law is widely recognized as the most important work of legal philosophy published in the twentieth century, and remains the starting point for most students coming to the subject for the first time. In this third edition, Leslie Green provides a new introduction that sets the book in the context of subsequent developments in social and political philosophy, clarifying misunderstandings of Hart's project and highlighting central tensions and problems in the work.

Fifty years on from its first publication, The Concept of Law is still the starting point for the study of legal philosophy and is widely heralded as a classic work of modern philosophy. This third edition features a new introduction by Leslie Green, looking at Hart's work from the perspective of modern jurisprudence.