groundbreaking attention to optical lighting effects. The new technical possibilities offered a different way of looking at the world and ultimately a new way of painting. No less innovative was the level of detail. These painters were thoroughly acquainted with each other's work-this volume shows the fundamental artistic cross-fertilization. A must-read for anyone who wants to fall in love with the old master- pieces anew. MATTHIAS DEPOORTER (*1980) is a writer and an art historian. He was one of the curators of the seminal exhibition Van Eyck: An Optical Revolution at the Museum of Fine Arts in Ghent and coordinated the accompanying scholarly publication.