Public relations (PR) is the practice of managing and disseminating information from an individual or an organization (such as a business, government agency, or a nonprofit organization) to the public in order to affect their public perception. Public relations (PR) and publicity differ in that PR is controlled internally, whereas publicity is not controlled and contributed by external parties.
Public relations may include an organization or individual gaining exposure to their audiences using topics of public interest and news items that do not require direct payment.
The exposure mostly is media-based. This differentiates it from advertising as a form of marketing communications. Public relations aims to create or obtain coverage for clients for free, also known as earned media, rather than paying for marketing or advertising also known as paid media. But in the early 21st century, advertising is also a part of broader PR activities.