Includes bibliographical references and indexes.

Hart's readers / Luís Duarte d'Almeida, James Edwards and Andrea Dolcetti -- The generality of law / Timothy Endicott -- Variety or uniformity? / Richard H.S. Tur -- Hart or sovereignty / Pavlos Eleftheriadis -- Why law might emerge : Hart's problematic fable / John Gardner -- The rule of recognition and the foundations of a legal system / Grant Lamond -- Words and obligations / Nicos Stavropoulos -- Hart on justice and morality / John Tasioulas -- The morality in law / Leslie Green -- International law : 'a relatively small and unimportant' part of jurisprudence? / Jeremy Waldron -- How persistent are Hart's 'persistent questions'? / John Finnis -- Hart's anti-essentialism / Fredereck Schauer -- The model of ordinary analysis / Pierluigi Chiassoni -- Do the 'persistent questions' resist? : revisiting chapter 1 in The concept of law / Nicola Lacey -- Introductory note / Juan Ramón de Páramo -- Answers to eight questions / H.L.A. Hart.