Author Erin Polgreen @erinpolgreen Erin Polgreen is co-founder of Symbolia and has helped many media outlets tell visual stories How comics can enhance reader engagement, bring new audiences to narrative nonfiction Shortly after I co-founded Symbolia, a digital publication that merges comic books and journalism, I got an intriguing pitch. Reporter Sarah Mirk wanted to tell the stories of the veterans… July 15, 2014