Maximiliaan P.J. Martens is Professor of Art History at Ghent University. Annick Born is a researcher at the same university's Interdisciplinary Centre for Art & Science. Both specialize in 15th- and 16th-century Netherlandish art. Luc Tuymans, who contributed a preface, is a highly regarded contemporary painter with works in major collections around the world. He lives and works in Antwerp, Belgium.