In fact, they work because they are simple. Single messages, simple words, and direct appeals keep the big banner accessible to the most causal passer-by. Exclamation point addicts can have a field day with big banners. Big banners are colorful. They offer a wonderful chance to jazz up a dull brick building or an aging structure.
Colors rule in banners.
They are king in big banners. The goal is to attract attention. They even generate excitement. Color is the key. Use a big banner's color to contrast with the businesses usual color schemes.