This substantial collection of sixteen original papers is one of a number of publishing ventures to have recently marked the centenary of the publication of G. E. Moore's Principia Ethica. It is not primarily a historical enterprise. Evidently what the editors have encouraged contributors to provide are cutting edge contributions to contemporary metaethics that engage with Moorean themes and concerns in ways that make the continuing relevance of those themes manifest. And this, to an impressive extent, is precisely what most of them have delivered. . . . This is a rewarding collection of papers, abundantly illustrating the lively state of contemporary metaethics. Anyone interested in moral philosophy could very profitably read it.