Have you heard of the term: "Copywriting"? Wikipedia defined it as:
"Copywriting is the use of words and ideas to promote a person, business, opinion or
idea. Although the word copy may be applied to any content intended for printing (as
in the body of a newspaper article or book), the term copywriter is generally limited to
promotional situations, regardless of the medium (as in advertisements for print,
television, radio or other media).
The purpose of marketing copy, or promotional text, is to persuade the reader, listener
or viewer to act--for example, to buy a product or subscribe to a certain viewpoint".