World leaders are increasingly acknowledging that Gross Domestic Product (GDP) alone cannot provide a full picture of a country’s progress. Enhancing human development and wellbeing requires people accessing the opportunities and means to live healthy, happy and satisfactory lives. The highly innovative 4th National Human Development Report for Timor-Leste puts the well-being of young people, three quarters of the country’s population, at the center of the development agenda. By measuring the subjective well-being of youth aged 15 to 34 across eight aspects of life based on a nation-wide survey, this report provides an excellent opportunity for decision makers to implement targeted policies and strategic investments based on an in-depth understanding of youth’s aspirations, attitudes and behaviors.