With the abundance of consumer data available, it has become easy to understand your customers' backgrounds and interests. Using this information can improve the customer's satisfaction with your product, thus increasing sales and retention. The linked article mentions how the magazine industry could tailor the images on the front and back covers to suit the tastes of their subscribers. Thus one version of "People" or "Forbes" could depict a race car on the inside cover (for those interested in cars and motor-sports) and another version of the same magazine could depict a beach setting to capture the attention of different subscribers.
This level of customization is not the dreams of the future. It is the reality of today.
See article here.