In the early decades of the 20th century, the radical syndicalists in France and the US introduced a new tactic into the trade union struggle for workers rights--sabotage. This was the deliberate practice of reducing the boss's profits through conscious planned action on the job--not vandalism or wrecking machinery, but wrecking profitability instead, through tactics such as "work to rule", the "open mouth", and "slowdown". Its most famous proponent in the US was the Industrial Workers of the World--the IWW or "Wobblies". This volume contains three classic expositions of the theory and tactics of sabotage, by Emile Pouget, Walker C Smith, and Elizabeth Gurley Flynn.