The Getty Research Institute (GRI) is one of four programs of the J. Paul Getty Trust, an international cultural and philanthropic institution devoted to the visual arts, all of which reside at the Getty Center situated high on a beautiful hilltop in Brentwood, California. (The other programs of the Getty Trust are the J. Paul Getty Museum, the Getty Conservation Institute, and the Getty Grant Program.) From the beginning it was understood that the GRI would develop a research program in the discipline of art history and more generally the humanities, and that a library would support its work. Since its founding the GRI has, in fact, developed a major library as one of its programs alongside those for scholars, publications, exhibitions and a multitude of lectures, workshops and symposia for scholars, students and the general public. What is now known as the Research Library at the GRI has grown to be a significant resource and this article focuses on its history, the building that houses it, its collections and databases, and access to them all.