Mark Schroeder is the author of Slaves of the Passions (OUP, 2007), Being For: Evaluating the Semantic Program of Expressivism (OUP, 2008), Noncognitivism in Ethics (Routledge, 2010), and Explaining the Reasons We Share (OUP, 2014), 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, Philosophers' Imprint, Oxford Studies in Metaethics, Oxford Studies in Epistemology, Philosophical Studies, and many other places. He is Professor of Philosophy at the University of Southern California.