Public relations is the art and science of connecting and communicating with all of the various public with whom an organization may have a relationship. Examples of these different public may include: employees, customers, government, industry, investors, shareholders, communities, general public, vendors, suppliers, members, donors (in the case of charities), and the media. This list is not definitive and each organization needs to identify the different public with whom they have relationships.
Media relations is the interaction with reporters, journalists and editors in print (newspaper and magazines) electronic (radio and television stations), and online (bloggers) media in order to communicate your company’s/client’s newsworthy messages, stories and information.So, while media relations is part of public relations, they are different functions with different responsibilities, and therefore, are not interchangeable.