Advertising has become a very specialized activity in modern times. In the business world of today, supply is usually greater than demand. There is great competition between different manufacturers of the same kind of product to persuade customers to buy their own particular brand. They always have to remind the consumer of the name and qualities of their product. They do this by advertising. They manufacture advertises in the newspapers and on posters. He sometimes pays for songs about his product in commercial radio programmes. He employs attractive sales-girls to distribute samples of it. He organizes competitions, with prize for the winners. He often advertises on the screens of local cinemas. Most important of all, in countries that have television he has advertisements put into programmes that will accept them.

• *'commercial radio programmes' are-