I came across these in a trendy little market in Brooklyn a few months ago. Subway system maps of huge cities all over the world, designed with the most minimalist approach. I can’t seem to find much info on the creators of these pieces. Only that there’s a graphic designer named Cayla and an engineer named John. They have a site lineposters.com and a shop where you can buy the posters or t-shirts on etsy. Mysterious folk, but nice work.