This survey of metaphysics covers the historical or classical aspects of the subject as well as those currently in the post-Wittgensteinian limelight--principally materialism, platonism, essentialism, and anti-realism. Benardete sees contemporary metaphysical preoccupations as more or less thinly disguised revisitings of those of the past, and explains how metaphysics and mathematical logic are interrelated and how metaphysical studies can illuminate both scinece and the humanities.