Recently, people need to buy lots of essential things to serve their lives better. But how can they know what should they buy? In fact, almost all businesses use advertisements as tools to market their products and promote sales. /Probably, one of the best methods is to emphasize that they are launching a brand-new product to stay ahead of their competitors. To my mind, advertisement is a double-edged sword as it is a development which is both beneficial and harmful. This essay will discuss the causes of this issue and explain my point of view.