According to the association of American marketing, marketing is defined as the set of institutions, activity, and processes for communication, exchanging, creating, and delivering offering that are of value to customers, clients, partners, and the society. This simply portrays the fact that marketing focuses majorly on the product sales of a particular company.
The promotional activities involved in marketing include advertisement and PR (public relations). On the other hand, public relations happens to be a form of marketing which places more focus on the relationship among the company and its people, including the staff and community.
This depicts that public relations focuses more on advancing the company's public figure. It involves a high task and investment, and it helps the company to know the mind of people about their products and brand as well. Public relations can help the company to earn the trust of the masses, thus improving their sales on the long run.