The university is organized into six principal academic units—five research schools consisting of twenty faculties and the doctoral school—with campuses throughout the historic Old Town and Morasko. The university employs roughly 4,000 academics, and has more than 40,000 students who study in some 80 disciplines. More than half of the student body are women. The language of instruction is usually Polish, although several degrees are offered in either German or English. The university library is one of Poland's largest, and houses one of Europe's largest Masonic collections, including the 1723 edition of James Anderson's "The Constitutions of the Free-Masons".