'Simon Kirchin's book is a masterful introduction to metaethics in which he manages to explain key ideas, arguments, and positions involved in metaethical debate and do so in a way that is accessible to beginners. Engagingly written, Metaethics is perfect text for use in upper level undergraduate ethics courses either as a lone text or as a companion to primary sources. Given the scope of the book and its intended audience, it is the best introductory text in metaethics now available.' - Mark Timmons, University of Arizona, USA