Externalism, Naturalism, Mathematics, Ontology, Personal Identity, Time and Tense, The Metaphysics of Reference, The Metaphysics of Properties, Conceivability, The Physical, and Theoretical Identity, and Actualism- these are some of the central issues addressed in the essays of this fifteenth volume devoted to metaphysics.

• Essays discussing metaphysics from some of the foremost academics in philosophy.
• Topics include Ontology, Personal Identity, the metaphysics of reference, and the metaphysics of properties.

Contributors for this volume include Professor Michael Jubien (University of California, Davis), professor David Braun (University of Rochester, NY), Professor Michael Devitt (University of Maryland), Professor William G. Lycan (University of North Carolina), Professor Penelope Maddy (University of California, Irvine), Professor Nathan Salmon (University of California, Santa Barbara), Professor Theodore Sider (Syracuse University), Professor Robert Stalnaker (Massachusetts Institute of Techonology), Professor James van Cleve (Brown University), Professor Edward N. Zalta (Standford University).