Luca Baroni, Director of the Rete Museale Marche Nord and author of Federico Barocci’s Catalogue Raisonné (Forthcoming)

Greg Rubinstein, Senior Director and Head of the Old Master Drawings Department at Sotheby’s

Tyr Baudouin, Galerie Lowet de Wotrenge

Dr Alexa McCarthy, Executive Director of the Greater Des Moines Public Art Foundation and specialist in drawings on blue paper

Greg Rubinstein, Senior Director and Head of the Old Master Drawings Department at Sotheby’s

Dominique Radrizzani, former Director of the Musée Jenisch Vevey, Vevey

Nigel Ip, Print Quarterly

Tom Nevile, Editor

Tom Mendel, Nonesuch Gallery

Helen Loveday, conservator and restorer

Grant Lewis, Milein Cosman Curator at the British Museum, London