Young people are often at the forefront of democratic activism, whether self-organised or supported by youth workers and community development professionals. Focusing on youth activism for greater equality, liberty and mutual care - radical democracy - this timely collection explores the movement's impacts on community organisations and workers. Essays from the Global North and Global South cover the Black Lives Matter movement, environmental activism and the struggles of refugees. At a time of huge global challenges, youth participation is a dynamic lens through which all community development scholars and participants can rethink their approaches.