Social ontology and the philosophy of society / John R. Searle -- Artifacts : parts and principles / Richard E. Grandy -- On the place of artifacts in ontology / Crawford L. Elder -- Artifacts and human concepts / Amie L. Thomasson -- Artworks as artifacts / Jerrold Levinson -- Artifact categorization : the good, the bad, and the ugly / Barbara C. Malt and Steven A. Sloman -- Seedless grapes : nature and culture / Dan Sperber -- How to refer to artifacts / Hilary Kornblith -- Water as an artifact kind / Paul Bloom -- The organization and representation of conceptual knowledge in the brain : living kinds and artifacts / Bradford Z. Mahon and Alfonso Caramazza -- The conceptual foundations of animals and artifacts / Jean M. Mandler -- The essence of artifacts : developing the design stance / Deborah Kelemen and Susan Carey -- A world apart : how concepts of the constructed world are different in representation and in development / Frank C. Keil, Marissa L. Greif, and Rebekkah S. Kerner -- Animal artifacts / James L. Gould -- The evolutionary ancestry of our knowledge of tools : from percepts to concepts / Marc D. Hauser and Laurie R. Santos -- Creations of pre-modern human minds : stone tool manufacture and use by Homo habilis, heidelbergensis, and neanderthalensis / Steven Mithen.