As is known to all, angels and evils are poles apart. But is there anything that combines the two perfectly? Some there is-the advertisement. With the growing influence of mass media, advertising invades every aspect of our lives. Whenever we turn on the TV, look through a newspaper, open the mailbox, or surf on the Internet, advertisements would immediately jump into our sight. As they make things so attractive, we often end up buying things that we do not really need. Advertising not only adds to the price of the goods, thus harming the consumer's interest, but also imposes a kind of materialistic value upon the audience. But that is only part of the story-advertisements are informative as well as persuasive. They provide us with up-to-date information about the latest products. Some advertisements are so elegantly presented that we are inspired or even moved. No matter it is an evil or an angel, advertisement has become an indispensable part of our modern life.