This guide brings together stories, tools and lessons from the Mobilising Men programme. This programme, a collaboration between the Institute of Development Studies (IDS), the United Nations Population Fund (UNDP) and civil society organisations in India, Kenya and Uganda, explored ways of engaging men as gender activists within the institutions in which they belong. The guide is intended to inspire and guide others who are committed to engaging more men in efforts to address sexual and gender based violence within the institutions in which we live our lives.