Outdoor advertising refers to promotional messages displayed in public spaces to reach a wide audience. Common formats include billboards, posters, transit ads, and digital screens. These advertisements are strategically placed in high-traffic areas, such as highways, city streets, and public transportation systems, to capture the attention of passersby. This form of advertising is effective because it targets consumers in real-time as they go about their daily activities. Outdoor advertising can enhance brand visibility and awareness, making it a popular choice for businesses looking to attract new customers. Examples of outdoor advertising include campaigns by major brands like Coca-Cola and McDonald's.