Ivy Lee, the man who turned around the Rockefeller name and image, and his friend, Edward Louis Bernays, established the first definition of public relations in the early 1900s as follows: "a management function, which tabulates public attitudes, defines the policies, procedures and interests of an organization...
"the art and social science of analyzing trends, predicting their consequences, counseling organizational leaders and implementing planned programs of action, which will serve both the organization and the public interest." Public relations is not a phenomenon of the 20th century, but rather has historical roots.
Within each discipline, typical activities include publicity events, speaking opportunities, press releases, newsletters, blogs, social media, press kits, and outbound communication to members of the press.
Video and audio news releases (VNRs and ANRs) are often produced and distributed to TV outlets in hopes they will be used as regular program content.
PR is able to divide to many types, for example the product public relations, financial public relations, corporate public relations, employee public relations and government public relations.
Product PR is managing the release of new products into the market.