I am very fortunate to have books in several collections. The first collection I will introduce is the collection at the Crouch Fine Arts Library (CFAL) at Baylor University in Waco, TX. The Crouch Fine Arts Library houses the music and visual arts collections and contains approximately 75,000 audio and video recordings; 95,000 music scores; and 50,000 books on the arts. CFAL's special collections include rare and unique materials dating from as early as the 11th century. I am not sure of the size of the collection, but images of many of the books are on-line. They’ve posted several clear up-close images of each book and from the looks of it, the collection is very diverse.
The library has a very informative page discussing what an artist book is, a link to images, and how to visit. I am very happy that my books Armoire, Emergence, Nan, and Cotton Heritage are housed in their collections. I confess that I have not visited the collection at Baylor in person, but plan to do so before the year is out - I can tell it will definitely be worth the drive and can’t wait to tell you about it!