This study investigates the social protection of workers in the platform economy at the request of the European Parliament’s Employment and Social Affairs Committee. The report reviews literature and previous research on the platform economy with the aims of defining it and developing a typology for understanding its nature. It discusses the growth and drivers of the platform economy, as well as benefits and challenges for workers, reporting findings from 50 interviews conducted with expert stakeholders in eight European countries and from an original survey of 1,200 platform workers. It dissects the different normative layers that need to be considered when looking at the challenges of social protection of platform workers from a legal perspective. Finally, the report draws conclusions and makes recommendations concerning arrangements for the provision of social protection for workers in this growing sector of the economy.