While filming at the Pitchfork Music Festival with Superchunk's Jon Wurster we spent a lot of time in Flatstock, the rock poster show. Wurster's long career as a rock drummer made browsing screen prints a walk down memory lane. He shared stories about posters for The Mountain Goats, Superchunk and A.C. Newman. Chicago poster artists Dan MacAdam and Dan Grzeca explain a little bit of their craft to Wurster and Dan Kuhlken of California and Mike King of Oregon help him reminisce.