This document discusses the role of advertising. It begins by defining advertising and its purpose of promoting goods and services to increase sales. It then outlines several types of advertising media, including print (newspapers, magazines, direct mail), broadcast (television, radio), online, and specialty advertising. The document also discusses the advantages and disadvantages of advertising, such as increasing sales but also potentially adding to product costs. In conclusion, it describes some of the effects of advertising on the economy and consumers' choices.