My students were learning about ads so I decided to show them the underbelly of advertising. This is not appropriate for all classes because numerous times I mention (gasp) sex. The ppt. starts with some harmless double meaning types of symbols. Then it goes into how we are manipulated to buy through sex, looks, and romance. I made this a 2 day lesson. The first day was presenting most of the ppt. The second day was showing the videos at the end of the ppt then giving the students magazines to thumb through and look for subliminals themselves, come to their own conclusions.