One of the earliest definitions of PR was coined by Edward Bernays. According to him, "Public Relations is a management function which tabulates public attitudes, defines the policies, procedures and interest of an organization followed by executing a program of action to earn public understanding and acceptance. "

According to two American PR professionals Scott M. Cutlips and Allen H. Center, "PR is a planned effort to influence opinion through good character and responsible performance based upon mutual satisfactory two-way communication".

Public relations is the art and science of managing communication between an organization and its key public constituents to build, manage, and sustain its positive image.

Public relations is the process of aligning the perceptions of targeted audiences (or publics) with the current realities and reasonable prospects of another entity.

Public relations is about building public relationships.

Public relations involves:

1. Evaluation of public attitudes and opinions.
2. Formulation and implementation of an organization's procedures and policy regarding communication with its publics.
3. Coordination of communications programs.
4. Developing rapport and good-will through a two way communication process.
5. Fostering a positive relationship between an organization and its public constituents.