Skills are central to Portugal’s future prosperity and the well-being of its people. The OECD Skills Strategy Diagnostic Report: Portugal identifies 12 skills challenges for Portugal. The first nine challenges refer to specific outcomes across the three pillars of developing, activating and using skills. The next three challenges refer to the “enabling” conditions that strengthen the overall skills system. Success in tackling these skills challenges will boost performance across the whole skills system. All of the challenges identified are strongly interlinked, and their connections with each other are identified throughout the report at the end of each challenge. Failure to look beyond policy silos will have implications for specific groups in Portugal, such as youth, as well as for the economy and society’s ability to recover after the economic crisis and build a solid foundation for future prosperity.