Yale’s library system contains fifteen million print and electronic volumes in more than a dozen libraries and locations. In addition to digital materials, our resources for teaching and research include ancient papyri, early printed books, maps, rare film and music recordings, and photographs. Many of the materials are in circulation. Some may be accessed in reading rooms or displayed in public exhibitions. And some are made part of the student learning experience in object study classrooms. By making its holdings widely available, Yale’s library fulfills its commitment to preserve and disseminate human knowledge.