The History of Trade Unionism: Revised Edition, Extended to 1920 by Sidney and Beatrice Webb is a comprehensive and authoritative account of the development and evolution of trade unions in Britain from their earliest origins to the aftermath of World War I. This seminal work, meticulously researched and richly detailed, traces the rise of collective labor organization, exploring the social, economic, and political forces that shaped the labor movement over more than a century. The Webbs chronicle the struggles and triumphs of working men and women as they sought to improve their wages, working conditions, and rights through collective action, negotiation, and political engagement. The book delves into the formation of early trade societies, the impact of industrialization, and the legal and political challenges faced by unions, including the Combination Acts and subsequent legislative reforms. It examines the growth of national unions, the emergence of new unionism in the late nineteenth century, and the increasing influence of labor in public life. The revised edition extends the narrative to 1920, covering the profound changes brought about by the First World War, the expansion of union membership, and the growing partnership between trade unions and the Labour Party. Throughout, the Webbs provide vivid portraits of key figures, landmark strikes, and pivotal events, offering insight into the strategies, philosophies, and internal debates that shaped the movement. Their analysis is informed by a deep commitment to social justice and a belief in the transformative power of collective action. The History of Trade Unionism remains an essential resource for understanding the roots of modern labor relations and the enduring quest for workers' rights and social equality.