Since 1953, the year in which the first European School was founded, publications and systematic research on this unique form of international nursery, primary and secondary education have been limited and fragmented leaving it as relatively blank spot in the international education arena. This book is the first-ever in the almost 60-year history of the European School that removes the obscurity and misconceptions that exist about it in a comprehensive manner. It describes, analyses and evaluates its position emanating from the main research question: what are the most important causes for its rise, what developments has it seen and what results has it achieved considering the studies and careers of its alumni. Furthermore, it is critical of some of its practices, makes suggestions for improvements and opens a debate about future developments. It also touches on current internationalisation efforts and structures in secondary and higher education in some European countries.