1. Andreas Schleicher - OECD

Andreas Schleicher is an influential education expert with the OECD (Organisation for Economic Co-operation and Development), known for his work on improving global education standards. He is best known for leading the Programme for International Student Assessment (PISA), which measures the skills of 15-year-olds in various countries. Schleicher's research focuses on how education systems can be improved to enhance learning outcomes and prepare students for a changing world. His insights help policymakers understand effective teaching practices and the importance of skills for future success in both work and life.