Taking into account significant developments in the metaphysical thinking of E. J. Lowe over the past 20 years, More Kinds of Being: A Further Study of Individuation, Identity, and the Logic of Sortal Terms presents a thorough reworking and expansion of the 1989 edition of Kinds of Being . This book brings many of the original ideas and arguments put forth in Kinds of Being thoroughly up-to-date in light of new developments. It features a thorough reworking and expansion of the earlier work, rather than just a new edition. It reflects the author’s conversion to what he calls ‘the four-category ontology,’ a metaphysical system that takes its inspiration from Aristotle. It provides a unified discussion of individuation and identity that should prove to be essential reading for philosophers working in metaphysics.