The number of disability related support services controlled and run by disabled people themselves has increased significantly in the UK, and internationally, over the past forty years. As a result, greater user involvement in service provision and delivery is a key priority for many Western governments. This book provides the first comprehensive review and analysis of these developments in the UK and summarizes and discusses the policy implications for the future development of services. It presents essential evidence and analysis for policymakers working within health, social care, education, housing, and equality.