The book documents and comments on the libertarian tradition from the beginning of the 19th century to the recent past. It highlights both the theoretical foundations of anarchists and their significant contribution to the socialist movement, the Russian Revolution, and the Spanish Civil War. Portraits of the key figures of anarchism complement this comprehensive collection of texts, which intricately traces the complex history of anarchism and clearly reveals the often overlooked constructive tendencies. The volume includes contributions from W. Godwin, M. Bakunin, P. J. Proudhon, P. Kropotkin, G. Landauer, R. Rocker, A. Berkman, E. Malatesta, Voline, V. Serge, E. Goldman, A. Souchy, G. Leval, G. Orwell, H. Read, and P. Goodman.