This work investigates the fundamental question of how value is dependent upon social practice while avoiding the pitfalls of cultural relativism. The text centers on the 2001 Berkeley Tanner Lectures delivered by Joseph Raz, a prominent moral theorist. The volume compiles Raz's original arguments alongside critical responses from three distinguished philosophers, creating a structured dialogue that examines the intersection of individual agency, social norms, and objective value.

Scholars and students of moral philosophy frequently cite this collection as a significant contribution to the discourse on value theory. The text is noted for its rigorous academic tone and the high caliber of the contributors, making it a standard reference for those interested in the intersection of social practice and ethics.