Christopher Peacocke (Interim Chair, 2019-20) is the Johnsonian Professor of Philosophy at Columbia University. He was previously the Waynflete Professor of Metaphysical Philosophy at the University of Oxford and held a Leverhulme Personal Research Professorship. He is a fellow of the British Academy and a fellow of the American Academy of Arts and Sciences. He has taught at Berkeley, NYU, and UCLA and has been a fellow of the Center for Advanced Study in the Behavioral Sciences at Stanford. He was president of the Mind Association in 1986-87. His books include Sense and Content (Oxford, 1983), Thoughts: An Essay on Content (Blackwell, 1986), A Study of Concepts (MIT, 1992), Being Known (Oxford, 1999), The Realm of Reason (Oxford, 2003), Truly Understood (Oxford, 2008), The Mirror of the World: Subjects, Consciousness, and Self-Consciousness (Oxford, 2014), and The Primacy of Metaphysics (Oxford, 2019).