The centrality of education in the pursuit of better economic and social prosperity is now well established. The dominance of human capital theory, which provides a strong argument for better education as a key factor in fuelling economic growth, has encouraged policy makers, in various countries, to focus on education reform as a key priority and to borrow policy solutions from other countries. This special edition explores one policy solution in depth. It investigates the preparation and training of school leaders in very different countries and takes a comparative perspective. This article argues that the limitations of standardized strategies are clearly visible when taking a comparative view and, most importantly, that context matters significantly in shaping, defining and explaining differential educational performance.