Billboards are large advertising displays placed in public places to promote a product, service or event. Typically found alongside busy roads, highways, and in urban areas, billboards can effectively target a broad audience. They can be static or dynamic, with static billboards consisting of a single image or message, and dynamic billboards featuring multi-image sequences that rotate electronically.

Billboards serve as an effective form of advertising due to their large visual impact and ability to grab the attention of passersby quickly. They are often used to promote new products, services, and events or to create brand awareness among consumers.

However, there is some debate around the effectiveness of billboards in today’s marketing world, as there are concerns about their ability to effectively target specific audiences and the issue of visual pollution in urban areas. Despite these concerns, billboards remain a popular form of advertising, with many companies investing significant amounts in billboard campaigns.