The Yale University Library, as one of the world's leading research libraries, collects, organizes, preserves, and provides access to and services for a rich and unique record of human thought and creativity. It fosters intellectual growth and supports the teaching and research missions of Yale University and scholarly communities worldwide. A distinctive strength is its rich spectrum of resources, including approximately thirteen million volumes and information in all media, ranging from ancient papyri to early printed books to electronic databases. The Library is engaging in numerous projects to expand access to its physical and digital collections. Housed in twenty-two buildings including the Sterling Memorial Library, the Beinecke Rare Book and Manuscript Library, and the new Bass Library, it employs a dynamic and diverse staff of nearly six hundred who offer innovative and flexible services to library readers.