Abstract
Raimo Tuomela is one of the pioneers of social action theory and has done as much as anyone over the last 30 years to advance the study of social action and collective intentionality. Social Ontology: Collective Intentionality and Group Agents presents the latest version of his theory and applications to a range of important social phenomena. The book covers so much ground, and so many important topics in detailed discussions, that it would impossible in a short space to do it even partial justice. In this brief note, I will concentrate on a single, though important, theme in the book, namely, the claim that we must give up methodological individualism in the social sciences and embrace instead irreducibly group notions. I wish to defend methodological individualism as up to the theoretical tasks of the social sciences while acknowledging what is distinctive about the social world and collective intentional action.