The dissemination of information-facts, arguments, rumors, half-truths, or lies - to influence public opinion.
Propaganda is the more or less systematic effort to manipulate other people's beliefs, attitudes, or actions by means of symbols (words, gestures, banners, monuments, music, clothing, insignia, hairstyles, designs on coins and postage stamps, and so forth).
Deliberateness and a relatively heavy emphasis on manipulation distinguish propaganda from casual conversation or the free and easy exchange of ideas. The propagandist has a specified goal or set of goals. To achieve these he deliberately selects facts, arguments, and displays of symbols and presents them in ways he thinks will have the most effect, To maximize effect, he may omit pertinent facts or distort them, and he may try to divert the attention of the reactors (the people whom he is trying to sway) from everything but his own propaganda.
Comparatively deliberate selectivity and manipulation also distinguish propaganda from education. the educator tries to present various sides of an issue, the grounds for doubting as well as the grounds for believing the statements he makes, and the disadvantages as well as the advantages of every conceivable course of action. Education aims to induce the reactor to collect and evaluate evidence for himself and assist him in learning the techniques for doing so. It must be noted, however that a given propagandist may look upon himself as an educator, may believe that he is uttering the truth, that he is emphasizing or distorting certain aspects of the truth only to make a valid message more persuasive, and that the courses of action that he recommends are in fact the best actions that the reactor could take. By the same token.
The reactor who regards the propagandist's message as self-evident truth may think of it as educational; this often seems to be case with :true believers" dogmatic reactors to dogmatic religious or social propaganda. "Education" for one person may be "propaganda" for another.