Over the past five years, tens of thousands of ‘ordinary people’ have undertaken voluntary work in support of, and in solidarity with, forced migrants in Europe. The New Internationalists: Activist Volunteers in the European Refugee Crisis, edited by Sue Clayton, aims to capture the scale and diversity of this international activist movement, lauded as one of the largest in European history. The book foregrounds the testimonial accounts of those volunteers who, with little to no training or support, worked to provide emergency aid, conduct sea rescues, develop community support structures, organise protests and advocacy campaigns and launch legal challenges with and on behalf of displaced people.