To begin with, the primary purpose of most advertisements is to persuade the public to buy. Thus, commercial advertisers seek to comply with the consumer's psychological orientation. They are doing their utmost to make the promoted products as appealing as possible. For instance, through the application of photo editing software or advanced video technology, designers are able to add shining effects to the pictures of the commodities so as to make them more eye-catching. In most cases, the photographs in print ads have undergone face-liftings before being presented in the media. The same is true with TV advertising. From a certain angle, each advertisement can be seen as a piece of fine art which encompasses more than the objective introductions of products. Colorful imaginations and creativity are indispensable elements often adopted with an aim to attract the consumers' attention. Meanwhile, by emphasizing the first-class quality of the products, they also attempt to leave a better impression on the potential buyers. Needless to say, good quality is a most effective stimulus that could encourage people to make purchases.