Book excerpt: A coherent overview of pressure groups in Britain and how they influence the government, accessible to non-specialist graduate and undergraduate students. Discusses what pressure groups are and how they are studied; their place in a democracy; their internal structures and dynamics; their cooperation and resources; and their relationship to the central government, Parliament, the press and public, and other pressure points. Distributed in the US by St. Martin's Press. Annotation copyright by Book News, Inc., Portland, OR