Advertising is any form of nonpersonal presentation and promotion of ideas, goods, and services paid for by an identified sponsor.
Advertising can be classified by target audience, geographic focus, and purpose.
Modern advertising began in the late 19th century and grew during the early 20th century as magazines and radio became mass advertising media.
After World War II, advertising grew at a fast rate, particularly when TV came on the scene.
The past two decades have seen the start of new channels for advertising, including cable TV and the Internet. Online advertising has grown in the past few years.
The three main components of the advertising industry are advertisers, agencies, and the media.
Advertising agencies put together large-scale campaigns for clients, consisting of a market strategy, theme, ads, media time/space, and evaluation.
Although not as visible as consumer advertising, business-to-business advertising makes up a significant portion of the industry.
