The book Industrial Workers' Union (I.W.W.): A Study of American Syndicalism was written by Paul F. Brissenden and first published in 1914. In this study, the author examines the genesis and development of the Industrial Workers' Union - an organization based on the idea of syndicalism and which became an important movement in the history of the American proletariat at the beginning of the 20th century. Brissenden analyzes in detail the principles and strategies that defined the activities of the I.W.W., reflected in their struggles for social rights, ensuring fair wages and decent working conditions for all workers. This book is an important addition to the study of the history of the proletarian movement in the United States and the role of syndicalism in the struggle for social justice.