Human beings are visual creatures. Just look at signs! Put up a print sign that says, “Curve ahead,” and you might start seeing the number of accidents on that curve going up. Put up a sign with a bent arrow on it, and every normal person slows down.
What do you look for in an airport or on a ferry, when nature makes its urgent call? Right! A silhouette that matches your gender, not a printed sign.
Billboards along the highways have long been a favoured way for companies to advertise. They are big, they are bright, they have large graphics on them and minimal print. Not only is it necessary to keep print to a minimum when cars are roaring along the highway at high speed; it is more likely that their attention will be grabbed and they will remember an image than a lot of print. That’s image power!