Abstract: Introduction – Nominalism – Platonistic Theories of Universals – Individuation – Identity – Existence, Ontological Commitment, and Fictional Entities – The Problem of Possibilia – Reductive Theories of Modality – Presentism – Four-Dimensionalism – Space-Time Substantivalism – Persistence through Time – Events – Causation and Supervenience – Causation in a Physical World – Distilling Metaphysics from Quantum Physics – Material People – The Ontology of the Mental – Supervenience, Emergence, Realization, Reduction – Libertarianism – Compatibilism and Incompatibilism: Some Arguments – Realism and Anti-Realism: Dummett's Challenge – Ontological and Conceptual Relativity and the Self – Vagueness in Reality

Keywords: anti-realism, causation, commitment, compatibilism, concept, event, existence, fiction, identity, libertarianism, metaphysics, modality, nature, nominalism, ontological commitment, ontology, particulars, person, Plato, possible worlds, reality, self, space, supervenience, time, universals, will, emergence, individuation, mind, people, persons, present, realization