Before you get the answer for the above let us understand what the Public relation means. It is a method and an art or science of establishing and promoting favorable relations with the public. That’s why it’s called public relation. Therefore the main function of the this firm is to build relations between the organization and its public or people involved in order to achieve the organizational goals.It also is the job of this firm to build a desirable image of a person or a group seeking public attention. It’s a way of communicating that helps the person or group to gain public understanding and acceptance. Its primary focus is to resolve or deal with any issues of the person or group rather than the product or service of the person or group.The goal of this relation firm uses publicity to gain good will rather than sales. It is a form of advertising the person or group to show that the organization goals are aimed to achieve the best for its public involved. Commonly used tools of public relations include news releases, press conferences, speaking engagements, and community service programs.The closest experience you would have had with public relation firm is the Human resource department (formally known as the HR department) in your own company. Their main job is to provide the organization with people who are productive and an asset to the organization and maintain the relation between the organization and employee. The relation between the employee and organization is maintained through communication. Further they are involved in motivating the employees and retain them in the organization by initiating various incentives and bonuses form the organization, in turn helping the organization have happy people who work for them and know they work for a good organization that cares for its employees need. Indirectly the HR department creates a good will for the organization in the market through its employees.In the present market as communication plays an important role in the growth of an individual or organization (group) the public relation firms come into play and are the vital requirement to build the relations. They use their communication skills and techniques to build and manage relations and keep an open dialogue between an organization or individuals audiences those who influence them.