This book is the initial volume coming out of the excellence project --a comprehensive research effort commissioned by the IABC (International Association of Business Communicators) Research Foundation. The purpose of this project was to answer two fundamental questions about public relations: What are the characteristics of an excellent communication department? How does excellent public relations make an organization more effective, and how much is that contribution worth economically? The research team began its work with a thorough review of the literature in public relations and related disciplines relevant to these questions. What started as a literature review, however, has ended in a general theory of public relations, one that integrates most of the wide range of ideas about, and practices of, communication management in organizations. Contents: Preface. J.E. Grunig,Communication, Public Relations, and Effective Organizations: An Overview of the Book. Part I: The Basic Theory.J.E. Grunig, J. White,The Effect of Worldviews on Public Relations Theory and Practice. L.A. Grunig, J.E. Grunig, W.P. Ehling,What Is an Effective Organization? J. White, D.M. Dozier,Public Relations and Management Decision Making. F.C. Repper,How Communication Managers Can Apply the Theories of Excellence and Effectiveness. Part II: The Program Level: Effective Planning of Communication Programs.J.E. Grunig, F.C. Repper,Strategic Management, Publics, and Issues. D.M. Dozier, W.P. Ehling,Evaluation of Public Relations Programs: What the Literature Tells Us About Their Effects. D.M. Dozier, F.C. Repper,Research Firms and Public Relations Practices. Part III: The Departmental Level: Characteristics of Excellent Public Relations Departments.J.E. Grunig,What Is Excellence in ManlÒ