Professor Papineau works on issues in metaphysics, philosophy of science, and the philosophy of mind and psychology. He has written For Science in the Social Sciences (1978), Theory and Meaning (1979), Reality and Representation (1987), Philosophical Naturalism (1993) and Introducing Consciousness (2000), and he edited Philosophy of Science (1996) and Teleosemantics (2006). His Thinking about Consciousness was published in 2002 and The Roots of Reason, a collection of essays on rationality, decision, and evolution, in 2003.