A copywriter is a professional writer who creates written content, typically for advertising or marketing purposes. They use their creativity and knowledge of language to craft persuasive text that promotes products or services, often working closely with art directors and other members of the creative team to develop effective campaigns. Copywriters may work in a variety of industries, including advertising agencies, marketing firms, publishing companies, and corporate communications departments. Their primary goal is to create compelling content that motivates people to take action, whether it's making a purchase or engaging with a brand.