the http://sotm-eu.org/en/pages/posters website is down … ( 404 Not Found )

on the other hand .. there is a backup ! https://web.archive.org/web/20180911013747/http://sotm-eu.org/en/pages/posters

my favorite:

You can check the latest posters here: https://2020.stateofthemap.org/posters/