Jean-Loup Champion is a sculptor, publisher, art historian, curator, and editor of several books. Frank Claustrat is Associate Professor of Contemporary Art History at Montpellier University in France as well as a noted expert on Nordic art. He has been published in Artnord, L’Œil, Connaissance des Arts, and La Gazette Drouot. Pierre Curie is curator at the Musée Jacquemart-André in Paris. Marianne Saabye is a Danish art historian and author who was the director of the Hirschsprung Collection from 1986 until 2016.