The Brazilian Pop Art illustrator Butcher Billy has created a series of posters for the Netflix production Stranger Things 4 which has captivated audiences and become a worldwide phenomenon on social media, and beyond. The nine artworks – one for each episode of Stranger Things season four – chime with the show’s avowed 1980s vibe, playing on the aesthetics of old comics, horror novel jackets and movie posters. Designed specifically for the Stranger Things social media campaign, the artworks…