A simple definition of a master printer is as the name implies a printer who mastered the art of printing nothing more and nothing less. In my opinion Robin Bell, Tom Baril, Nathalie Lopparelli and other master printer are like a virtuoso they ad something to the image that goes beyond simple printing of an image, one could say they enhance the print by adding somthing of their vision and emotions. Mapplethorpe without Tom Baril would be unthinkable.