Advertising

Advertising is a one-way communication whose purpose is to inform potential customers about products and services and how to obtain them. Every major medium is used to deliver these messages, including: television, radio, movies, magazines, newspapers, video games, the Internet (see Internet advertising), and billboards. Advertising is often placed by an advertising agency on behalf of a company.

Advertisements can also be seen on the seats of grocery carts, on the walls of an airport walkway, on the sides of buses, heard in telephone hold messages and in-store public address systems. Advertisements are usually placed anywhere an audience can easily and/or frequently access visuals and/or audio.