This book investigates the viability of practical expressivism as a comprehensive metaethical theory capable of accounting for moral discourse and disagreement. Neil Sinclair, a scholar in moral philosophy, utilizes a rigorous analytical framework to evaluate how expressivist accounts of moral attitudes can address traditional challenges, such as the Frege-Geach problem and the nature of moral truth. The text systematically builds a case for how expressivism can maintain its core commitments while responding to the arguments typically leveled by moral realists.

Experts in the field recognize this work as a significant contribution to the ongoing debate between expressivism and moral realism. Readers frequently note the high level of academic density and the technical precision required to follow the author's arguments.