✚ What artistic phenomena in 15th-16th-century Netherlandish art are causing heated debate? ✚ How has the work of Rogier van der Weyden been critically re-examined? ✚ What is the problem with the "Frank van der Stockt group"? ✚ What are the results of the restoration of Jan van Eyck's "Ghent Altarpiece"? ✚ What are the current questions raised in the study of Hieronymus Bosch's work? ✚ What attributions of Netherlandish paintings in the Hermitage collection are causing scholarly controversy? ✚ How have monographic exhibitions of the last two decades influenced our understanding of the corpus of works by the greatest masters of the Northern Renaissance? ✚ How has "International Mannerism" been rethought? ✚ What are the results of the projects on the corpora of works by Rubens and Rembrandt? ✚ What discoveries have been made in the study of Flemish masters' paintings and graphic works in the Hermitage in recent decades?