Before & After photos

Copywriting Tip: Sometimes a simple Before & After photo will explain an entire product without much need for copy. For example, this simple advertisement for a charging device shows a 1-outlet device replacing multiple charging bricks:

You instantly understand the product.

Since that charging device is a PHYSICAL PRODUCT you can see, it's easy to do a before & after of it. But if you sell a service you can show the after results of using your service, like these ads:

So instead of showing the service itself you show the RESULTS of the service.