How do we organize for progressive social change in an era of unprecedented economic, social, and ecological crises? How do political activists build power and critical analysis into their daily work for change? Grounded in struggles in Canada, the USA, and Aotearoa/New Zealand, as well as transnational activist networks, Organize! links local organizing with global struggles for social justice. From organizing immigrant workers to mobilizing psychiatric survivors, from arts and activism for Palestine to support for Indigenous Peoples, activists, academics, and artists reflect on the tensions and gains inherent in a diverse range of organizing contexts and practices. Organize! encourages us to use history to shed light on contemporary injustices and how they can be overcome.