http://www.metmuseum.org/research/metpublications
The Metropolitan Museum of Art’s launch of MetPublications, which WILL “eventually offer access to nearly all books, Bulletins, and Journals” published by the Met since 1870. The collection now features a whopping 375 free art books and catalogues overall. Taken together, these collections examine in detail art from all eras of human history and all parts of the world. At the bottom you will see the cover for the Met’s The Art of Illumination. (Who doesn’t love illuminated Medieval manuscripts?)