Data is still being collected about how many people participated in the Women’s March in Washington, D.C., in other U.S. cities, and around the globe. In total, Saturday, January 21, 2017, may have seen the largest demonstration in U.S. history. Surely it was the largest, most exciting, compelling exhibition and demonstration of poster art, ever. Most posters were one-of-a-kind, handmade expressions—paintings, collages, hand-lettered signboards—of heartfelt emotions. A few we