Adam Przywara presented a paper titled "The Materiality of Ruins: Rubble, Salvaged Bricks, and Waste Aggregates in the Postwar Socialist Reconstruction of Warsaw” at the Second International Congress on European War Ruins and Their Uses (19th - 21st century) in Caen. The conference offers new perspectives on ruins in Modernity. (Photo: A pair of residents watch a Canadian bulldozer clearing away the ruins of destroyed houses, rue de Bayeux, Caen, 10 July 1944. Conseil Régional de Basse-Normandie / Archives nationales du Canada, Public Domain.)