The Republic of Türkiye’s trajectory of improvement over the past two decades stands out internationally. Few other countries have been able to bring previously out-of-school children into the education system and improve performance at the same time. This report provides a picture on how student performance has evolved over this period. It is based on data from the OECD Programme for International Student Assessment (PISA) and the International Association for the Evaluation of Educational Achievement (IEA) Trends in International Mathematics and Science Study (TIMSS). The report analyses if factors related to student background – such as gender or socio-economic status – are associated with performance. It also analyses student performance across different cognitive and content domains of learning.