Health care systems across OECD countries are increasingly under pressure from social changes and emerging new health challenges. National systems are facing complex issues, ones that combine shifts in demographics, disease patterns, health inequalities and the environment. These challenges are transformative and cannot be addressed solely through treatment; they require a well-coordinated, whole-system approach, within a strong public health system. These reviews are designed to provide strategic advice and help countries strengthen their public health systems through innovative measures. They provide in-depth analysis and policy recommendations to strengthen priority areas of countries’ public health systems. Topics covered include: tackling unhealthy lifestyles, increase efficiency of health checks and preventive screening, responding to public health emergencies, and more.