They are the ones selected by the systems which engaged actively in the OECD/ILE work and who thus had the knowledge and means, as well as the desire, to take part in this international study. The featured strategies and initiatives can make no claim to special effectiveness, in any case, it is questionable whether any strategy can make the bold claim to be “global best practice” when so much depends on the context and the unique social and political circumstances in each setting. Instead, they provide a fascinating set of cases from which to gain insights into the range of approaches being taken to spread and sustain innovative learning in different systems around the world.