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 color.
Some billboard designs spill outside the actual space given to them by the billboard, with parts of figures hanging off the billboard edges or jutting out of the billboard in three dimensions.
Some of the most prominent billboards are alongside highways; since passing drivers typically have little to occupy their attention, the impact of the billboard is greater. Billboards are often drivers' primary method of finding food and fuel on unfamiliar highways.chicago bachelor pad