They tell us where to pee, where to go, and where to throw away our trash - pictograms are symbols that shape not just how we move through the world but also how we think about it. Design equity advocate Nick Ross reveals the power they have to change society, and designer Yang Liu and professor of visual communication Ashley Jane Booth explain how these tiny pieces of design create a universal language that can bridge cultural divides.   To find blogs and images related to each episode, go to domestika.org/podcasts. And to find online courses on hundreds of creative topics, go to domestika.org.