Director of the Amsterdam Rijksprentenkabinet; connoisseur of drawings and prints. Boon studied art history at Amsterdam University, with professor Ferrand Whaley Hudig (1883-1937), and at the Sorbonne in Paris. He finished his studies at the école du Louvre with a thesis on the relationship between the School of Cologne and Netherlandish painting in the second half of the fifteenth century, Les rapports entre l'école de Cologne et la peinture néerlandaise dans la deuxième moitié du quinzième siècle.