Advertising is a way to convince people to buy something that they cannot afford and do not really need. Advertising often uses tactics to make people think they need a certain item or service, when in reality they do not. For example, an advertisement might show a product that makes life seem easier or more enjoyable, even though it is not essential for survival or happiness. Advertising can also be used to make people think a product is of higher quality than it really is, in order to persuade people to spend more money on it.