Pasi Sahlberg is a Finnish educator who has worked as a schoolteacher, teacher-educator and policymaker in Finland and advised national education reforms around the world. Pasi has published over 100 articles and books about education and school improvement. His bestseller, Finnish Lessons: What Can the World Learn from Educational Change in Finland? has contributed to better understanding Finland’s education system. He is a recipient of several education awards, including the 2013 Grawemeyer Award and the 2016 Lego Prize. Pasi is professor of education policy at the University of New South Wales in Sydney, Australia. Timothy D. Walker is an American teacher who taught in Finland for six of the eight years he lived there. He lives in Milford, Connecticut, and is author (with Pasi Sahlberg) of In Teachers We Trust: The Finnish Way to World-Class Schools. Andy Hargreaves is Research Professor at Boston College and holds professorships at the University of Ottawa, Hong Kong University, Swansea University, and the University of Stavanger. He is founder & president of ARC Education Project: a group of nations committed to excellence, equity, wellbeing, inclusion, democracy and human rights.