"Much effort has been expended by libertarians in making the case for how the market could address any number of potential problems. This is important work, but presenting a brilliantly argued case for libertarianism only means success in a world of completely rational people. If we were living in that world, libertarianism would have prevailed long ago. The charts and graphs (the seemingly lone visual aids) trotted out by economists to make the case for laissez-faire economics are more likely to put audiences to sleep than inspire them to action. Defenders of the free market need new visual rhetorical strategies that highlight the human costs of intervention."