Publicity is non-paid communication to promote a company using media like television, radio and newspapers. It is done through third parties using press releases to provide information about products or activities. Publicity can attract attention, maintain visibility, provide information, change attitudes and combat negative publicity. There are three categories of publicity techniques - continuous PR activities, pre-planned short-term activities, and unpredictable short-term activities. Publicity has advantages of being credible and cost-effective with frequent exposure, but has less control and accuracy than paid advertising.