Industrial Workers of the World
The Industrial Workers of the World (IWW), whose members are nicknamed "Wobblies", is an international labor union founded in Chicago in 1905. The nickname's origin is uncertain. Its ideology combines general unionism with industrial unionism, as it is a general union, subdivided between the various industries which employ its members. The philosophy and tactics of the IWW are described as "revolutionary industrial unionism", with ties to socialist, syndicalist, and anarchist labor movements.
Big Bill Haywood and office workers in the IWW General Office, Chicago, summer 1917
The first IWW charter in Canada, Vancouver Industrial Mixed Union no.322, May 5, 1906
A Wobbly membership card, or "red card"
1914 IWW demonstration in New York City
Industrial unionism is a trade union organising method through which all workers in the same industry are organized into the same union, regardless of skill or trade, thus giving workers in one industry, or in all industries, more leverage in bargaining and in strike situations.
A cartoon from the May 1919 IWW periodical One Big Union, published in Revolutionary Radicalism, shows a worker choosing between the AFL and IWW slogans.
Image: One Big Union