In Aristotle on the Category of Relation, Pamela Hood challenges the view that Aristotle's conception of relation is so divergent from our own that it does not count as a theory of relation at all. Professor Hood examines Aristotle's various treatments of relation and relational entities with a special focus on Aristotle's two central texts on relation, Categories 7 and Metaphysics V.15. While the common view is that Aristotle does not have, and indeed could not have, a theory that accounts for dyadic relations, Hood's analysis reveals Aristotle's deep commitment to the dyadic nature of relation. She also unearths a feature in Aristotle's relational theory that appears to account not only for the terms of a dyadic relation, but also for the relation itself. This book presents compelling evidence that Aristotle's theory of relation is more robust than originally suspected.