Advertising, What Is It ? Advertisements are methods used to commercialize a product or anything else, such as AA meetings, a garage sale, etc. Advertising is used mainly to influence specific audience or all audiences to buy the product. For example, my product is advertising Reebok and is concentrating on people who play American Football. The advertisement is using the testimonial* method to advertise Reebok. The purpose for advertising is to commercialize a product or anything else to a certain audience or to any audiences. Another purpose for advertising is to persuade peopl