This anthology, intended to accompany A Companion to Metaphysics (Blackwell 1995), brings together nearly fifty essays representing the best and most important work in metaphysics during this century. The selections are grouped into nine major metaphysical topics and each section is preceded by an introduction from the editors. Among the problems covered are existence, identity, essence and essential properties, 'possible worlds,' things and their identity over time, emergence and supervenience, causality, and realism/antirealism. The coverage is comprehensive and will be accessible to those without a background in technical philosophy.