Artist Shawn Martinbrough to Appear at Geppi’s Entertainment Museum By J.C. Vaughn As part of the widely lauded exhibit Milestones: African Americans in Comics, Pop Culture and Beyond, which runs through December 31, 2014, Geppi’s Entertainment Museum (GEM) will present artist Shawn Martinbrough on Saturday, August 16, 2014, in two sessions from 1 p.m. to […]