Promotion keeps products in customers' minds and stimulates demand through ongoing advertising and publicity. Promotion involves advertising, which brings a specific product or service to potential and current customers' attention through signs, brochures, commercials, and other methods. Promotion also includes publicity from media mentions where organizations have less message control than with advertising. An example distinguishes between advertising a circus, promoting it with an elephant, gaining publicity by damaging the mayor's flowers, and achieving public relations by making the mayor laugh about it.