This article casts a wide net over the key events, people, locations and collections that shaped the development of the Arts Library at Yale University, beginning with its inception as a humble departmental collection. While the physical spaces that have housed the library have undergone tumultuous changes over the years, the collections themselves have evolved in ways both unique to Yale and universal to the field of librarianship. In autumn 2008, the library was re-christened the Robert B. Haas Family Arts Library and it is now housed within the renovated Paul Rudolph Hall and the newly constructed addition, the Jeffrey H. Loria Center for the History of Art.