The document provides an overview of public relations and discusses different definitions of PR. It notes that there is no universally agreed upon definition because PR can mean different things to different people and organizations. The author's own definition is that PR involves distributing organizational information and shaping public image. The document then discusses the history of PR and how it has evolved over time, particularly with the rise of big institutions, public opinion, corporate social responsibility, periods of change and conflict, and the internet age. It argues that nearly every organization engages in some form of PR.