What is it with signs that have product images on them? Why do they sell more than those that simply contain text? The photo on the left show an all text sign while the one on the right shows one with an image of the item being sold. Which one would you buy from? Photos on a sign increases product credibility by showing customers what they will get- thereby addressing any objections or doubts they may have. At the same time, appealing photos engage customer emotions better. Food images when done right can make customers hungry and feel the ‘need’ to immediately satisfy their hunger.