"Armies of Labor: A Chronicle of Organized Labor" is a research work of the famous sociologist and historian Samuel Peter Orth, devoted to organized labor and the trade union movement in the United States of America. The book examines the history of the formation and development of labor organizations, their role in the struggle for workers' rights and social improvements. Under the author's leadership of Ort, we go on a fascinating journey through the history of the trade union movement - from the first attempts at organization to the current stage. The author examines in detail important events, trade union leaders, and their impact on the economy and society as a whole. Through its objective approach, in-depth analysis, and accessible presentation of the material, Army of Labor becomes an important source of knowledge for anyone interested in the history of organized labor, the struggle for social justice, and the development of the trade union movement.