Ukraine's New Ukrainian School (NUS) reform aims to make schooling engaging and stimulating by focusing on each student's personal development and their acquisition of key competencies. At the upper secondary level, implementing the NUS implies major changes in the country's Academic Lyceums. The OECD has developed this report to provide insights and advice for Ukraine's reforms based on international evidence and experience. It combines analysis of international data, research, the experiences of country peers and Ukraine's own recent experiences of implementing reforms. It provides policy options to support Ukraine's ambitions to transform general upper secondary education in the country.