本世纪50年代以来,公共关系实践和理论研究进入了一个全新的现代发展时期。在这一时期里,以斯科特·卡特利普、艾伦·森特、詹姆斯·格鲁尼格和萨姆·布莱克为代表的一批公共关系专家和大师,通过对半个多世纪公共关系实践和理论探索的总结,把公共关系这门学问推向了一个新的历史发展阶段。美国著名公共关系专家卡特利普和森特合著的《有效公共关系》是这一时期出现的一部集公共关系理论研究成果大成的代表作,它首版于1952年,其后30多年中,共出过5个修订版,1985年第六版增加了一位新的作者格伦·布鲁姆,1994年又问世了最新的第七版。不断充实新的研究成果、完善已有的理论体系和修订有关的事实及数据,使这本书保持了永久的生命力,有“公关圣经”之称。卡特利普和森特在该书首版和二版中首次完整 Since the 1950s, the practice of public relations and theoretical research have entered a whole new era of modern development. During this period, a group of public relations experts and masters, represented by Scott Catlip, Alan Center, James Grunig and Sam Black, analyzed the relationship between public relations over half a century The conclusion of practice and theory exploration pushed the knowledge of public relations to a new stage of historical development. The “Effective Public Relations” co-authored by the well-known American public relations experts Caterpillar and Center is a masterpiece of the research achievements of public relations theory that emerged during this period. It was first published in 1952, and over the next 30 years, A total of five revisions were made, a new author, Glen Bloom, was added to the sixth edition in 1985 and the seventh edition was released in 1994. Constantly enrich new research results, improve the existing theoretical system and the revision of relevant facts and data, so that the book has maintained a permanent vitality, “Public Relations Bible ” said. For the first time in both the first and second editions of the book, Cattle and Center were complete