Leonard Clapp has been teaching introductory philosophy classes for over twenty-five years. He earned his Ph.D. at the Massachusetts Institute of Technology. Dr. Clapp specializes in the philosophy of language at Northern Illinois University. In addition to teaching courses on this aspect of the discipline he also teaches classes on the history of analytic philosophy and the philosophy of mind. His writing has been featured in journals such as The Journal of Philosophy, Mind and Language, Philosophical Studies, the Journal of Pragmatics, and Linguistics and Philosophy.