Communication Yearbook 20, originally published in 1997 contains ten major reviews that collectively span the discipline. Two of the reviews examine how consumption of television programs affects viewers. Other media-related chapters examine sex-role stereotyping in advertising, the role of the public relations professional in the production of the news, and the nature and effects of public opinion. This collection also includes review articles addressing attitude change and persuasion, participation in decision-making groups, social anxiety, the development of social competence in childhood and cross-sex friendships across the lifespan. The chapters in this volume present summaries of relevant findings as well as penetrating discussions of theories, methods, problems and directions for future research.