This valuable and timely guidebook represents an innovative contribution to enhancing quality education through textbooks. It will change the way textbook authors, publishers and educators, as well as governments of the United Nations Member States, see the potential of educational media at a time of growing violent extremism, changing notions of national identity, increasingly globalized and diverse communities, and environmental destruction. The need for education that promotes peace, social justice and global citizenship has become more urgent in a world of greater uncertainty. This guidebook builds on the momentum of Agenda 2030, providing a toolkit to enable textbook authors to place ESD at the core of their subjects in ways that are at once practical for them and interesting and relevant to the students.