Answer :
Advertising art pioneer Edward Bernays describes public relations in his book.
Edward Louis Bernays (1891-1995) was an Austrian-American pioneer in public relations. He was the first practitioner to call himself a public relations consultant, and eminent communication theorists and practitioners have called him the father of public relations. One of his earliest definitions of PR was created by Edward Bernays. According to him, "Public relations is the administrative function that aggregates public attitudes, defines organizational policies, procedures, and concerns, and then implements action plans to gain public understanding and acceptance. In his 1928 book Propaganda, Bernays hypothesized that understanding the collective consciousness would allow us to manipulate people's behavior without us even realizing it. To test this hypothesis, Bernays launched one of his most famous PR campaigns. persuade a woman to smoke
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