Anne-Florence Gillard-Estrada is a Professor of 19th-century British literature and visual arts at the University of Rouen Normandie and a member of the research centre ERIAC.Laura Valette is an art historian. Her PhD thesis, defended at Paris 1 Panthéon-Sorbonne in 2020, was entitled "Whistlerism (1878–1914)" and she was co-curator of the exhibition "James Abbott McNeill Whistler: the butterfly effect" (Rouen, France, 2024).