Autism is one of the most compelling, controversial, and heartbreaking cognitive disorders. It presents unique philosophical challenges as well, raising intriguing questions in philosophy of mind, cognitive science, and philosophy of language that need to be explored if the autistic population is to be responsibly served. Starting from the "theory of mind" thesis that a fundamental deficit in autism is the inability to recognize that other persons have minds, Deborah R. Barnbaum considers its implications for the nature of consciousness, our understanding of the consciousness of others,...