Dr. Edward N. Zalta is a Senior Research Scholar at the Center for the Study of Language and Information at Stanford University. He directs the Metaphysics Research Lab at CSLI and serves as the Principal Editor of the Stanford Encyclopedia of Philosophy, a dynamic reference work that he designed. His research specialties include metaphysics and formal ontology, the philosophy of mathematics, computational metaphysics, and intensional logic, among others. Zalta has published two books, Abstract Objects: An Introduction to Axiomatic Metaphysics (D. Reidel, 1983) and Intensional Logic and the Metaphysics of Intentionality (MIT Press, 1988), as well as articles in the Journal of Philosophy, Mind, Journal of Philosophical Logic, Noûs, Journal of Logic and Computation, Bulletin of Symbolic Logic, and elsewhere. Zalta obtained an honors B.A. from Rice University in 1975, and a Ph.D. in Philosophy from the University of Massachusetts/Amherst in 1981. He came to Stanford in 1984 as a Postdoctoral Fellow at CSLI.