 One important part of the museum complex is the Rogerio Casas-Alatriste H. Library, named after the first director.It is dedicated to Mayer's book collection most of which were bought to research pieces which Mayer had bought or was interested in.The library is in the cloister area, containing with over 14,000 volumes, which includes 800 different editions of Don Quixote and the Chronicles of Nuremberg, edited in 1493.