Alvin Chang, Senior Graphics Reporter for Vox, wrote and illustrated an article last year called "The subtle ways colleges discriminate against poor students, explained with a cartoon." In this episode of the podcast, we share the audio of a webinar that Chang presented about his work for the Center for Sustainable Nanotechnology. He tackles challenging issues of class, bias, and educational attainment using clear illustrations (verbal as well as visual!) and simple analogies that are relevant far beyond the world of academic science.