Liets writing Nowadays,there are lots of advertisements on television or on the street.some people think that the advertising boots the sales of goods and it encourage people to buy things unnessarily.This argument may be ture.In my country,many advertising companies produce advertisements with famous and popular actors or singers.People,especially youngsters,buy goods that their favourite singer advertise,although they do not really need the product. Also,on the telivision screen,a product may look gorgeous and good quality.as a result of it,people often buy goods without enough consideration.Consumers may not actually need it but they buy goods impulsively soon after they watch the advertising.Furthermore,as many customers buy a particular product due to its advertising campaign,the other people may be effected by the trend,even if the product is not of the real needs of the society