The practical advice and guidelines in this book help support learning to live together, conflict transformation and peace at the individual, group and community levels. The framework for developing widely accessible, high quality learning materials supports the UN Sustainable Development Goals and is relevant to formal and non-formal education activities and projects. This document also raises important issues about the professional responsibilities of policy-makers at global and national level, who determine what content is addressed in the classroom. In particular, it addresses the need for education materials that support cross-cutting issues such as learning to live together, global citizenship education, and education for sustainable development.