Two of my best book presentations are now online. Here's a serious, scholarly version (video) at the Collège de France. Here's a funny, popular version (audio only) at the Foundation for Economic Education. Or at least the first is what I call scholarly, and the second is what I call funny.
Structurally, the talks are basically the same - I explain the Miracle of Aggregation, show that its key assumption doesn't hold up empirically, then focus on systematically biased beliefs about economics. The main difference comes from the audience. At the Collège de France, participants are more likely to take the Miracle of Aggregation for granted, so I focus on undermining it. At FEE, most of the participants had never heard of the Miracle, so I need to set it up before I can knock it down.