This biography charts the life and fascinating long militant career of the French anarchist journalist, editor, theorist, writer, campaigner and educator Jean Grave (1854-1939), from the run up to the 1871 Paris Commune to the eve of the Second World War. Through Grave, it explores the history of the French and international anarchist communist movement over seven decades: its “heroic period” (1880-1890s), shaken by terrorist violence and intense repression, the emergence of syndicalism, national and international solidarity campaigns, the divisions over the First World War, and post-war division and relegation. Through Grave, a “sedentary transnationalist,” the study investigates the networked and transnational organisation of the anarchist movement, addressing the paradox of Grave’s international influence alongside his deep rootedness in Paris by emphasizing the movement’s global print culture and staggering circulations.