Adidas advertisement

http://www.magazine.org/advertising_and_pib/Kelly_Awards/Winners_and_Finalists/3440.cfm

This advertisement shows the "world's fastest man Donovan Bailey" running on a track in Adidas spikes. The message: Adidas spikes help you run faster. The image is effective because it shows a shadow, which no one can actually get rid of, struggling to keep up. It is effective because of its simplicity and humor.