This guide is for post-primary schools that are working to embed Global Citizenship Education (GCE) into their school community, and are part of the WorldWise Global Schools (WWGS) Programme. It aims to support schools to integrate Global Citizenship Education and create global citizens in their schools. Whether you are just starting to explore, or you are experienced in Global Citizenship Education, this handbook will help to guide your GCE practice and offer some suggestions as to how you can approach your GCE work and engage with the WWGS programme.