The University of Iowa's first-rate library system and up-to-date computing facilities offer a wealth of resources to graduate scholars. The UI's library system includes 11 departmental libraries and more than five million bound volumes, ranking 14th for overall holdings among the nation's public research universities. The UI's commitment to technology includes 26 campus Instructional Technology Centers with over 1,000 free computer stations. The UI provides wireless data network access for mobile computing devices such as laptops and smartphones. The University focuses on providing access in common spaces, classrooms, conference rooms, and similar areas, and 145 classrooms are equipped with multimedia technology.