The Encyclopedia of Public Relations explores the evolution of the Public Relations field, with examples from history describing events, changing practices, and the key figures who developed and expanded the profession. This two-volume set is the first and most authoritative compilation of the subject and is a must-have for any library serving patrons in business, communication, and journalism. The encyclopedia explores key challenges facing the profession of public relations and its practitioners, such as earning the trust and respect of critics and the general public. These volumes go into great depth about such ethical policies and challenges. The Public Relations Society of America (PRSA) operates under a specific code of ethics-full details of which are included in an appendix.