The EPNoSL Network, coordinated by the Foundation for Research and Technology-Hellas, involves 34 stakeholders of different values (i.e. Ministries of Education, Education Agencies, Teachers‘ and Principals’ Associations at European level, Research Institutions and Education Policy Experts) who interact in a collaborative and reflective way, with the main aim of co-constructing, managing and sharing knowledge to inform policy, with the ultimate goal of improving school leadership in Europe.