Types of signage can include monument signs, wayfinding signs, pole signs, and A-frame sidewalk boards. Digital signage is the newest form of displaying information. It can include LCD screens, giant LED billboards or electronic paper displays. Business signage is any type of graphic display that communicates a message to a target audience. It is the most effective and least expensive form of advertising for a small business. Signage includes outdoor signs, window displays, informational signage, digital signage, and more.