As power has shifted from European Union's member states to Brussels, social democratic parties are striving to remain relevant within the neoliberal transnational polity. Ladrech (politics, international relations, and the environment, Keele U., UK) delineates their challenge and analyzes the response in the form of an innovative party network established in 1992 by the Party of European Socialists (PES). The author does not ascribe to the view that PES is an embryonic European political party, but rather that it serves domestic policy development and coordination interests at the supranational level. Annotation c. Book News, Inc., Portland, OR (booknews.com)