11 August 2020, Rhineland-Palatinate, Mainz: Artist Liesel Metten sits in front of the Gutenberg Museum in her recently unveiled book chair, a bronze sculpture dedicated to Johannes Gutenberg. On the right, Marianne Grosse, the head of the Mainz Department of Culture, applauds. In a project with schoolchildren, over 400 discarded books were collected from waste paper bins, stacked in an armchair form, cast in plaster and later cast in bronze using a silicon mould taken from it. Photo: Frank Rumpenhorst/dpa