Sterling Memorial Library (SML) is the main library building of the Yale University Library system in New Haven, Connecticut, United States. Opened in 1931, the library was designed by James Gamble Rogers as the centerpiece of Yale's Gothic Revival campus. The library's tower has sixteen levels of bookstacks containing over 4 million volumes. Several special collections—including the university's Manuscripts & Archives—are also housed in the building. It connects via tunnel to the underground Bass Library, which holds an additional 150,000 volumes.

The Beinecke Rare Book & Manuscript Library is the rare book library and literary archive of the Yale University Library in New Haven, Connecticut. It is one of the largest buildings in the world dedicated to rare books and manuscripts and is one of the largest collections of such texts. Established by a gift of the Beinecke family and given its own financial endowment, the library is financially independent from the university and is co-governed by the University Library and Yale Corporation.