Public relations (PR) aims to manage information between an organization and the public to maintain a positive view, while advertising is paid communication to promote a product. PR differs in that it seeks free exposure through topics of public interest rather than direct payment. Both PR and advertising are used to promote products, but they differ in control (advertisers control ads fully, PR has less media control), communication (ads are one-way, PR is two-way), media (ads are paid for, PR seeks earned media), and credibility (ads have less, PR placements have more). Their goals of informing the public are similar, though advertising reaches more people due to expense while PR provides free and potentially more trusted coverage.