The University of Palermo is a public research organization covering several main fields of study fostering an interdisciplinary approach. The structures include: 16 Departments, 1 School of Medicine, 21 libraries, 3 decentralised premises (Agrigento, Trapani, Caltanissetta), the Museum System, the Language Centre, the Italian school for foreign students, the Guidance Centre. It boasts 144 degree courses 40 master courses, 29 specialization schools, 23 PhD programmes.