Founded by Thomas S. Kaplan and Daphne Recanati Kaplan, The Leiden Collection is among the largest and most important collections of seventeenth-century Dutch art in private hands. The Online Catalogue of The Leiden Collection, edited by Arthur K. Wheelock Jr. and Lara Yeager-Crasselt, explores the Collection through scholarly entries of more than 175 paintings and drawings, artist biographies, and essays. With contributions from more than a dozen leading scholars, the catalogue illuminates the major artists and themes of the Collection, which represents one of the richest periods of artistic creativity in European Art.