A common means of influencing public opinion is

Propaganda is a common means of influencing public opinion. Propaganda is a form of communication that aims to shape people's beliefs, attitudes, and behaviors towards a particular idea, product, or political position. It can take many forms, such as posters, slogans, speeches, social media posts, and advertisements. Propaganda can be used to create a positive image of a particular person, product or policy, or to demonize a particular individual or group. It is often used by governments, political parties, and interest groups to influence public opinion and promote their agendas.