Anti-smoke

This ad is effective because it is saying if you don't stop smoking, you are going to kill yourself. The ad conveys the message of how smoking is particularly harmful. The ad shows a man dropped a jar full of smoke, slowly writhing away. The author of this ad uses logos in a way that tells you if you put poisonous smoke into your body it will kill you eventually. In other words, common sense (logic). Rather than trying to make you buy cigarettes, the ad tries to make you stop buying cigarettes.