Have you got a message that needs expressing, but you don’t know how? Suppose your vehicle is full of young children and you want the drivers around you to take special care? Maybe you need to draw them a picture instead of spell it out in so many words. Car decals can do exactly that.
Using stick figures, cartoons or special symbols, they can get your message across with very little trouble or effort. The designers know how to use a picture to tell a thousand words. Using psychological response, the right color combinations are also helpful in expressing a message for those who may only have a few seconds to read and absorb the message being shown.