Three times a year the museum presents a new series of exhibitions from the permanent collection of prints and drawings. Its nearly 16,000 prints span the history of the medium, from the fifteen th century to the present day, and include many significant works by every major printmaker, from Dürer and Rembrandt to Picasso and Johns. They feature many other groups of distinctive number, depth and quality, from Italian Mannerism and the ancien régime in France, to interwar America and modern Mexico. The museum's 1,500 drawings include fine examples from most periods and cultures, but are internationally renowned in the areas of the Italian Renaissance, the Baroque in Europe generally, and contemporary Latin America. The exhibitions are divided by broad period and dedicated to specific arguments, regularly concerning school, subject, and technique, as well as individual artist. They are presented in specially designed galleries around the museum's second floor, adjacent paintings and sculptures of the same period. Some exhibitions are organized in conjunction with courses at the University. Each reveals another dimension of the history, meaning and beauty of the graphic arts.