Two reasons for the rapid growth of public relations :
(1) Communication Gap : The need for communication between organisations and the public is being increasingly recognised. Public relations function is required to bridge this communication gap.
(2) Recognition of Social Responsibility : Public relations has grown in importance as corporations recognise that they have a social responsibility to serve the public. Public services of corporations include financial contributions to community, social welfare, health and youth organisations, participation by employees in local government and education, and sponsorship of cultural education.