Appearance in Reality addresses topics in fundamental metaphysics, extending positions developed in From and Ontological Point of View (2003) and The Universe as We Find It (2012). This is not simply ‘Part III’ of a three-part project, however. The book takes what readers familiar with those earlier volumes would likely regard as a surprising turn, finding common ground between divergent ‘Aristotelian’ and ‘Humean’ cosmologies in Spinoza. The book includes considerable new and newly framed material on essences, universals, relations, emergence, hylomorphism, modality, conscious experiences, free will, and related topics. A substance–property ontology is proposed, one in which properties are not universals, but modes, particular modifications of particular substances. The ontology is meant to be consistent with both atomistic and non-atomistic cosmologies, or with whatever cosmology physics eventually settles on. One of the book’s unifying themes concerns the problem of reconciling what Wilfrid Sellars called the manifest and scientific images. The aim is to understand how the appearances comport with our best guess as to the nature of reality. The question of the relation of appearance to reality has always been central to metaphysics, but it is one faced by any reflective agent. Its unavoidability drives metaphysics. Far from being an idle pastime, metaphysics is not optional.