The Center for the Study of Political Graphics (CSPG) is an archive of almost 100,000 political posters, from the 19th Century to the present day. Based in California, the archive has become a hub for artists, academics, students, teachers and enthusiasts. We interviewed one of the archive’s founders, Carol Wells, and she chose a selection of her favorite posters to highlight. CSPG has curated exhibitions around the US and online, and contains the largest collection of post-World War II posters in the country.