Propaganda is a form of communication used to influence public opinion and behavior in a way that benefits the person or group spreading the message. This can involve spreading biased or misleading information, manipulating emotions, or using persuasive techniques to sway individuals towards a particular ideology or belief. Propaganda has historically been used in both wartime and peacetime contexts, and continues to play a role in shaping public discourse and opinion in contemporary society. Researchers studying propaganda examine its techniques, effects, and implications for democracy and society as a whole.