Renée van de Vall is emeritus professor of Art & Media at Maastricht University. Her research focuses on the phenomenology of spectatorship in contemporary art, on processes of globalization of contemporary art and media, and on conservation theory and ethics in the context of contemporary art. She was project leader of various research projects, most recently (2016-2019) of the Marie Sklodowska-Curie Innovative Training Network on New Approaches in the Conservation of Contemporary Art (NACCA). Vivian van Saaze is associate professor of Conservation Theory and Museum Studies at Maastricht University and senior specialist in Modern and Contemporary Art at the Cultural Heritage Agency of the Netherlands (RCE). She is involved in several collaborative research projects and acted as interim project leader of the Marie Sklodowska-Curie Innovative Training Network on New Approaches in the Conservation of Contemporary Art (NACCA).