What is a disability? What sorts of limitations do persons with disabilities or impairments experience? What is there about having a disability or impairment that makes it disadvantageous for the individuals with it? Are persons with severe cognitive impairments capable of making autonomous decisions? What role should disability play in the construction of theories of justice? Is it ever ethical for parents to seek to create a child with an impairment? This anthology addresses these and other questions and is a valuable addition to a growing interdisciplinary literature exploring issues at the intersection of disability studies, philosophy, and bioethics. Most of the authors are well-known from their previous work in the disability field and have already made significant philosophical contributions to it.