A press release is an official statement delivered to members of the news media for the purpose of providing information, an official statement, or making an announcement. A press release is traditionally composed of nine structural elements, including a headline, introduction, body, and other information.
Press release submission refers to writing about new events, products or services of the company and submitting it to PR sites. It is an off-page SEO strategy the helps popularize your events, products or services on the web to improve SEO of your site.