If you have driven anywhere over the past decade, you have probably seen this billboard. The one that says “Does Advertising Work? JUST DID!” It is everywhere, and more importantly, it sticks. You notice it, you remember it, and you might even bring it up later without realizing why. That alone puts it ahead of most billboards, which tend to disappear the second you pass them. What is interesting is how little it is actually doing. There is no product image, no long explanation, and no list of features. Just a question, an answer, and a phone number. That simplicity is doing a lot of work, and it is a good example of how strong ideas tend to carry more weight than layered design. Here is why it lands.