In the past, scholars have traditionally focused on the subjects and meanings of Hieronymus Bosch’s works, whereas issues of painting technique, workshop participation, and condition of extant pictures has received considerably less attention. Since 2010, the Bosch Research and Conservation Project has been studying these works using modern methods. The team has documented as thoroughly as possible Bosch’s extant paintings with infraredreflectography and ultra high-resolution digtal macro photography, both in infrared and visible light. X-radiographs have been digitized, and the complete photographic documentation processed via co-registration. Together with microscopic study of the paintings, all of this has enabled the team to write extensive and critical research reports describing the techniques and condition of the works, published in this extraordinary volume for the first time, all of which can further inform our understanding of Bosch’s oeuvre.
Luuk Hoogstede is a paintings conservator at SRAL, Maastricht. Ron Spronk is professor in art history at Queen’s University, Kingston, Ontario, Canada and Radboud University Nijmegen, The Netherlands. Matthijs Ilsink is the project coordinator of the Bosch Research and Conservation Project and teaches art history at Radboud University Nijmegen, The Netherlands. Jos Koldeweij is professor in art history of the Middle Ages at Radboud University Nijmegen, the Netherlands.