This is a guide to what co-production is and how to develop co-productive approaches to working with people who use services and carers. It is aimed at managers and commissioners, frontline practitioners and people who use services and carers.The first section looks at what co-production is and the principles on which co-productive approaches should be based. It also outlines the policy context, including how co-production relates to the Care Act 2014 and personalisation, the economic impact of co-production.