The purpose of the publication is to describe ways in which education for sustainable development (ESD) can be integrated into primary and secondary schooling. This collection of briefs is designed to complement other ESD materials published by UNESCO. The topics for the briefs were selected in consultation with UNESCO Field Offices and Institutes. The briefs for primary and secondary teachers are specifically written for professional educators who work in formal education settings. The briefs for teachers as well as those for decision-makers address “gaps” in the UNESCO ESD literature.