Out-of-home advertising is the collective term for advertising placed in public and shared environments outside the home. It includes
billboards, transport media, street furniture, retail and leisure environments, plus digital screens in many of the same places.
The channel is defined by where the audience sees the advertising rather than by one particular format. A useful OOH plan starts with the audience, geography, objective, timing and budget, then selects the environments and media that fit those requirements.