One traditional way to make an impact is by utilizing a short and fun play on words that’ll create a chuckle, or even a short rhyme that will help your message stick. A picture is also worth 1000 words.A large dynamic image can tell it all. In fact, an image will help retain your message better than by using words alone. Just make sure the image has an impact. The average driver will only have about 3 to 5 seconds to view your billboard design, read any text, and comprehend the message. In those 3 to 5 seconds, the driver could also be glancing from the billboard, to the road, and back to the billboard again depending on the severity of traffic. That’s even less viewing time on your ad! So one of the most important rules to follow will be keeping your message short. Very short! Shoot for a maximum of 7 words or less.