In the marketing system, public relations is the only tool used by enterprises to build public trust.
Due to the increasingly detailed division of labor in society, the importance of public relations personnel is increasing, and many colleges and universities have set up public relations to train public relations talents in different fields for the society.
The nature of public relations industry makes it inevitably have close contact with the media. At present, the enterprises in Chinese mainland's public relations industry are close to customers and media, so they are mainly distributed in Beijing, Shanghai and Guangzhou, as well as Chengdu and Wuhan.