From Belle da Costa Greene, the stylish first Director of the Morgan Library, to Swiss bookdealer Ulrico Hoepli, who financed Italy's largest planetarium in his spare time, the people who formed the medieval manuscripts trade in the early 20th century were a fascinating group of characters. 

Explore this section to find out more about the lives of the collectors, dealers, scholars, auctioneers, and others involved in the trade, and the international networks they developed.