Book excerpt: Originally published in 1986, The Transformation of American Industrial Relations became an immediate classic, creating a new conceptual framework for understanding contemporary insutrial relations in the United States. In their introduction to the new edition, the authors assess the evolution of industrial relations and human resource practives, focusing particularly on the policy impoications of recent changes. They discuss the diverse forms of work restructuring in the American economy, the reasons why the diffusion of participatory work reorganization has been so modest, work practices among sophisticated nonunion employers, union membership declines, and public policy debates.