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Advertising is very important for companies to succeed. The first and most important step for advertisers is to choose an advertising objective. There are many different types of advertising with different purposes companies use to increase their sales. Companies . use informative advertising to give information about a new type of product. For example, the first sellers of DVD players had to tell consumers about the quality and convenience of the new product in order to increase the demand for the new product. Moreover, persuasive advertising is used to tell their customers how company’s version is better than all the others. For instance, when DVD players became common, Sony began to persuade customers that its brand has the best quality. In addition , to compare the company’s brand with one or more other brands, they use comparative advertising. An example is Avis, a car rental company, which compared itself with its bigger rival Hertz by claiming, “We’re number two, so we try harder.” Another different kind of advertising is reminder advertising, which is important for products later in their life. Unlike the other types, its objective is to help to keep them thinking about the product. This is why expensive Coca-Cola television ads mainly build and maintain the Coca-Cola brand relationship, rather than trying to inform or persuade people to buy drink straight away. These are necessary objectives of advertising which will bring success to companies.