The purpose of this guide is to help CSOs and others change organisational culture and practice to better understand and support social movements so they can achieve systemic change together. This movement mindset guide comes with a toolkit that is not just about theoretical concepts; the toolkit guide is a roadmap for action. It is designed to empower CSOs to adapt their organisational culture, practices, and strategies to better support social movements. By embracing a movement mindset, CSOs can become genuine allies, catalysts for change, and driving forces behind the collective pursuit of a more just, equitable, and transformative world.