This Handbook surveys the contemporary state of the burgeoning field of metaethics. Forty-four chapters, all written exclusively for this volume, provide expert introductions to:

• the central research programs that frame metaethical discussions
• the central explanatory challenges, resources, and strategies that inform contemporary work in those research programs

• debates over the status of metaethics, and the appropriate methods to use in metaethical inquiry

This is essential reading for anyone with a serious interest in metaethics, from those coming to it for the first time to those actively pursuing research in the field.