Public relations (PR) involves communicating with the public and media to create and maintain a positive image for organizations, companies, and individuals. A PR specialist uses various tools like press releases, newsletters, and websites to directly or indirectly communicate the target audience's message through media. Some key events in the history of PR include Samuel Adams using propaganda to gain support for the American Revolution and Harold Burson growing Burson-Marsteller into one of the largest PR agencies worldwide. The PR process involves research, planning communication tactics, implementing the plan, and evaluating the results. Common PR techniques are attending public events, issuing press releases, publishing newsletters, blogging, and using social media.