The document discusses different types of press releases, including general press releases, launch press releases, product press releases, expert positioning press releases, event press releases, and executive or staff announcement press releases. Each type has a different purpose and format. For example, a general press release disseminates news to generate interest, a launch press release creates buzz for a new launch, and a product press release includes details and photos of a product. The document also cautions against sending too many generic press releases and recommends crafting targeted, relevant messages for media.