David Lewis (1941-2001) was Class of 1943 University Professor of Philosophy at Princeton University. His contributions spanned philosophical logic, philosophy of language, philosophy of mind, philosophy of science, metaphysics, and epistemology. In On the Plurality of Worlds, he defended his challenging metaphysical position, "modal realism." He was also the author of the books Convention, Counterfactuals, Parts of Classes, and several volumes of collected papers.

Written by an international assembly of leading philosophers, this volume includes seventeen newly-commissioned full-length survey articles on the central topics of epistemology.

A series of topical philosophy studies aiming to publish original essays by foremost thinkers in their fields, with each volume confined to a main area of philosophical research.