Born in Vercelli in 1861, Luigi Galleani is considered, with Errico Malatesta, the most influential militant of Italian-speaking anarchism. First in Italy and then in the United States, where he arrived at age forty, he was well-known as a tireless thinker, agitator, and public speaker who attracted large numbers of workers to the revolutionary cause and, often, to acts of direct action and “propaganda of the deed.” Though frequently glimpsed in numerous histories of radical movements of the late nineteenth and early twentieth centuries, little has been written about Galleani in English. This book, translated from the Italian, brings the fascinating biography of one of the most charismatic exponents of workers’ struggles to a new audience. The result of a fruitful collaboration between Antonio Senta, a scholar of anarchist history, and Sean Sayers, a philosopher and Galleani’s grandson, it skillfully animates Galleani’s life and ideas, from his early life in Italy, though his time in America, to his deportation back to his homeland, where he was soon jailed by the Fascists. Senta’s portrayal of the man who edited the infamous Cronaca Sovversiva and inspired a movement of “Galleanisti,” which included such figures as the political martyrs Sacco and Vanzetti, provides a thorough introduction to the man and his times, one that will reward both scholars and activists.