Text of a print, radio, or television advertising message that aims at catching and holding the interest of the prospective buyer, and at persuading him or her to make a purchase all within a few short seconds. The headline of an advertising copy is said to be the most important part, and quite often a small change in its wording brings disproportionate results. Although a short advertising copy is more common in consumer-product advertising, according to the UK advertising guru David Ogilvy (1911-1999) people do read (and listen or attend to) lengthy advertisements if they are skillfully written. Most advertising copy is based on advertising/consumer research and is composed by professional copywriters hired by advertising agencies. Also called advertisement copy, ad copy, or just copy.