Mark Schroeder is the author of Slaves of the Passions (OUP 2007), Being For: Evaluating the Semantic Program of Expressivism (OUP 2008), and Noncognitivism in Ethics (Routledge 2010), as well as over fifty articles in ethics, epistemology, and the philosophy of language. His work has appeared in Ethics, Philosophical Review, Mind, Noûs, Philosophy and Phenomenological Research, Oxford Studies in Metaethics, Philosophical Studies, and many other places. He is Professor of Philosophy at the University of Southern California.