The Libraries of New York University hold collections totaling more than 4 million volumes, almost 5 million microforms, 500,000 government documents, 80,000 sound and video recordings and a wide range of electronic resources. The collections grow by more than 140,000 volumes annually. Over 700,000 of these items circulate each year. The Division of Libraries consists of the Elmer Holmes Bobst Library and the Libraries of the Institute of Fine Arts, the Courant Institute of Mathematical Sciences and the Real Estate Institute. Separate libraries support the curricula of the schools of Law, Medicine and Dentistry.