In this book, the chapter authors have shared diverse national perspectives on contemporary ECEfS policy, research and practice from all continents across the world. We recognise that sustainability is conceptualised in different ways across historical, social and cultural contexts and this is strongly evident throughout. In these chapters, the authors have demonstrated a willingness to work collaboratively to enact global sustainability aspirations, while addressing climate injustices and the challenges of systemic ECEfS implementation. Some draw on international frameworks, such as the SDGs, to guide national policy and action. We invite readers to listen, respect and reflect on the varied understandings and insights offered here. Lastly, in reflecting on these chapters, as editors we have identified traces of commonalties and divergences across policy, teacher knowledge, pedagogy and research. We highlight these as potentially informative for readers of this book, particularly those who may choose to read only some selected chapters.