One billboard format is a Digital Billboard this type of billboard is good because it is easier to see in darkly lit areas and at night these are good because the image can change, and they can even show video which means that they can be more eye catching and appealing.

Another format is a 48-sheet billboard that is normally 3 metres high and 6 metres long another one is a 96 sheet billboard this type of billboard is 3 metres tall but 12 metres long so roughly around double in length compared to the 48 sheet these two are both examples of static billboards which means that the image stays the same they are good because they are big and can show big images making it easy for by passers to see.

Another form of billboard is a bus stop / bus shelter billboard these are much smaller than the other forms mentioned so far as they must fit within a bus stop which means that they can only be a certain size a benefit of these is that these can be back lit which means that there is a light behind the billboard making it easier to see at night and can make them stand out to people.