Mass communication can be defined as the effective sharing of information with a large audience. The media through which this communication takes place are known as mass media and include public presentations, standout object constructions, radio, television, mobile devices, direct mail and the internet. 

Mass communication comes in many forms and serves various purposes, including educating the general public, promoting political campaigns and providing entertainment. It can be used to quickly spread information far beyond the original source. Journalists, marketers, politicians and public relations professionals with a firm understanding of the process can use it to communicate with a broad audience.