Advertising is the non personal communication of information paid for or usually persuasive in nature about products, services or ideas by identified sponsors through the various media. The simplest definition is advertising is an act or practice of calling public attention to one's product, service, need, etc., especially by paid announcements in newspapers and magazines, over radio or television to get more customers.
Advertising helps us to choose which product we want. For example, there are different types of biscuits like Shortbread, Maryland, etc, as consumers we have different varieties to choose from. Also as I stated above, to advertise a product it has to be paid for depending on the time used in advertising it.
Lastly, adverts change within the years because people enjoy moving with time. No one likes to be left behind in the latest improvement or change. The first Coca Cola advert was in Black and White but now the newest advert has a lot of color, drama and also action.