Billboard sign is a large outdoor advertising structure (a billing board), typically found in high-traffic areas such as alongside busy roads. Billboards present large advertisements to passing pedestrians and drivers. Typically brands use billboards to build their brands or to push for their new products.

The largest ordinary-sized billboards are located primarily on major highways, expressways, or principal arterials, and command high-density consumer exposure (mostly to vehicular traffic). These afford the greatest visibility due not only to their size, but because they allow creative “customizing” through extensions and embellishments.

Posters are the other common form of billboard advertising, located mostly along primary and secondary arterial roads. Posters are in a smaller format and are viewed principally by residents and commuter traffic, with some pedestrian exposure.

Advertising style

Billboard advertisements are designed to catch a person’s attention and create a memorable impression very quickly, leaving the reader thinking about the advertisement after they have driven past it. They have to be readable in a very short time because they are usually read while being passed at high speeds. Thus there are usually only a few words, in large print, and a humorous or arresting image in brilliant col

A digital billboard shows varying imagery and text created with computer programs and software. Digital billboards can be designed to display running text, have several different displays from the same company, or provide several companies with a certain time slot during the day. Flexible and real-time scheduling can decrease traditional upkeep and maintenance costs, and some billboards may measure audiences or serve dynamic content. Using digital billboards dynamically has come to be known as programmatic out-of-home advertising.^[4] Billboard posters can play audio using conductive ink; when touched, the posters begin to play sounds.

Common along highways are free-standing two-sided as well as three-sided billboards. Other types of billboards include the billboard bicycle attached to the back of a bicycle or the mobile billboard, a special advertising trailer to hoist big banners. Mechanical billboards display three different messages, with three advertisements attached to a conveyor inside the billboard