Out-of-home advertising (or outdoor advertising) is made up of more than 100 different formats, covering every street and corner of the world proving the best ever media of advertising till today. Outdoor advertising is essentially any type of advertising that reaches the consumer while he or she is outside the home. This medium is in contrast with broadcast, print, and Internet advertising.

Out of home advertising, therefore, is focused on marketing to consumers when they are "on the go" in public places, in transit, waiting (such as in a medical office), and/or in specific commercial locations (such as in a retail venue). Outdoor advertising formats fall into four main categories: billboards, street furniture, transit, and alternative.|

Outdoor Advertisement, Autorickshaw Advertisement in Delhi