Wil Waluchow, Senator William McMaster Chair in Constitutional Studies, McMaster University, Canada,Stefan Sciaraffa, Professor, Department of Philosophy, McMaster University, Canada

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.

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