Wil Waluchow is a Professor in McMaster's Department of Philosophy, the Senator William McMaster Chair in Constitutional Studies, and an Adjunct Member of the Graduate Faculty of Osgoode Hall Law School, Toronto. His BA and MA in philosophy are from the University of Western Ontario (Huron University College) and his DPhil in the philosophy of law is from Oxford University, where he studied under the supervision of H.L.A. Hart. His current research interests are in general jurisprudence and the philosophy of constitutional law. He is the author of numerous books, including Inclusive Legal Positivism (OUP, 1994) and A Common Law Theory of Judicial Review: The Living Tree (CUP, 2007).Stefan Sciaraffa is Associate Professor of Philosophy at McMaster University. He specializes in the philosophy of law and social, moral and political philosophy. He received a J.D. from the University of Texas and a Ph.D. in philosophy from the University of Arizona.

The essays are of high quality and confront important issues in contemporary jurisprudence.

• Part I. Furthering Debate Between the Leading Theories of Law 1: Mark C. Murphy: The Explanatory Indispensability of Weak Natural Law Theory 2: Matthew Kramer: In Defense of Hart 3: Kenneth Ehrenberg: Law's Authority Is Not a Claim to Preemption 4: Arie Rosen: The Normative Fallacy Regarding Law's Authority 5: Imer Flores: The Nature of Law and Legal Rationality: Towards an Integrative Jurisprudence Part II. The Power of Legal Systems 6: Bruno Celano: Law as Power: Two Rule of Law Requirements 7: Ken Himma: Hart and Austin Together Again for the First Time: Coercive Enforcement and the Theory of Legal Obligation 8: Robert Hughes: Law and the Entitlement to Coerce Part III. Conceptual Analysis 9: Andrei Marmor: Farewell to Conceptual Analysis (in Jurisprudence) 10: Natalie Stoljar: What Do We Want Law to Be? Philosophical Analysis and the Concept of Law Part IV. New Directions 11: David Enoch and Kevin Toh: Legal as a Thick Concept 12: Keith Culver and Michael Giudice: Making Old Questions New: Law, Legal System, and State 13: Giovanni Battista Ratti and Andrea Dolcetti: Legal Disagreements and the Dual Nature of Law 14: Dan Priel: One Right Answer? The Meta Edition

Wil Waluchow is a Professor in McMaster's Department of Philosophy, the Senator William McMaster Chair in Constitutional Studies, and an Adjunct Member of the Graduate Faculty of Osgoode Hall Law School, Toronto. His BA and MA in philosophy are from the University of Western Ontario (Huron University College) and his DPhil in the philosophy of law is from Oxford University, where he studied under the supervision of H.L.A. Hart. His current research interests are in general jurisprudence and the philosophy of constitutional law. He is the author of numerous books, including Inclusive Legal Positivism (OUP, 1994) and A Common Law Theory of Judicial Review: The Living Tree (CUP, 2007).Stefan Sciaraffa is Associate Professor of Philosophy at McMaster University. He specializes in the philosophy of law and social, moral and political philosophy. He received a J.D. from the University of Texas and a Ph.D. in philosophy from the University of Arizona.

The essays are of high quality and confront important issues in contemporary jurisprudence.

• Part I. Furthering Debate Between the Leading Theories of Law 1: Mark C. Murphy: The Explanatory Indispensability of Weak Natural Law Theory 2: Matthew Kramer: In Defense of Hart 3: Kenneth Ehrenberg: Law's Authority Is Not a Claim to Preemption 4: Arie Rosen: The Normative Fallacy Regarding Law's Authority 5: Imer Flores: The Nature of Law and Legal Rationality: Towards an Integrative Jurisprudence Part II. The Power of Legal Systems 6: Bruno Celano: Law as Power: Two Rule of Law Requirements 7: Ken Himma: Hart and Austin Together Again for the First Time: Coercive Enforcement and the Theory of Legal Obligation 8: Robert Hughes: Law and the Entitlement to Coerce Part III. Conceptual Analysis 9: Andrei Marmor: Farewell to Conceptual Analysis (in Jurisprudence) 10: Natalie Stoljar: What Do We Want Law to Be? Philosophical Analysis and the Concept of Law Part IV. New Directions 11: David Enoch and Kevin Toh: Legal as a Thick Concept 12: Keith Culver and Michael Giudice: Making Old Questions New: Law, Legal System, and State 13: Giovanni Battista Ratti and Andrea Dolcetti: Legal Disagreements and the Dual Nature of Law 14: Dan Priel: One Right Answer? The Meta Edition

Wil Waluchow is a Professor in McMaster's Department of Philosophy, the Senator William McMaster Chair in Constitutional Studies, and an Adjunct Member of the Graduate Faculty of Osgoode Hall Law School, Toronto. His BA and MA in philosophy are from the University of Western Ontario (Huron University College) and his DPhil in the philosophy of law is from Oxford University, where he studied under the supervision of H.L.A. Hart. His current research interests are in general jurisprudence and the philosophy of constitutional law. He is the author of numerous books, including Inclusive Legal Positivism (OUP, 1994) and A Common Law Theory of Judicial Review: The Living Tree (CUP, 2007).Stefan Sciaraffa is Associate Professor of Philosophy at McMaster University. He specializes in the philosophy of law and social, moral and political philosophy. He received a J.D. from the University of Texas and a Ph.D. in philosophy from the University of Arizona.

The essays are of high quality and confront important issues in contemporary jurisprudence.

• Part I. Furthering Debate Between the Leading Theories of Law 1: Mark C. Murphy: The Explanatory Indispensability of Weak Natural Law Theory 2: Matthew Kramer: In Defense of Hart 3: Kenneth Ehrenberg: Law's Authority Is Not a Claim to Preemption 4: Arie Rosen: The Normative Fallacy Regarding Law's Authority 5: Imer Flores: The Nature of Law and Legal Rationality: Towards an Integrative Jurisprudence Part II. The Power of Legal Systems 6: Bruno Celano: Law as Power: Two Rule of Law Requirements 7: Ken Himma: Hart and Austin Together Again for the First Time: Coercive Enforcement and the Theory of Legal Obligation 8: Robert Hughes: Law and the Entitlement to Coerce Part III. Conceptual Analysis 9: Andrei Marmor: Farewell to Conceptual Analysis (in Jurisprudence) 10: Natalie Stoljar: What Do We Want Law to Be? Philosophical Analysis and the Concept of Law Part IV. New Directions 11: David Enoch and Kevin Toh: Legal as a Thick Concept 12: Keith Culver and Michael Giudice: Making Old Questions New: Law, Legal System, and State 13: Giovanni Battista Ratti and Andrea Dolcetti: Legal Disagreements and the Dual Nature of Law 14: Dan Priel: One Right Answer? The Meta Edition