The Paul D Fleck Library and Archives at the Banff Centre has a collection of Artists Books, Multiples and related materials that includes over 4,000 items. I did a residency at the Centre a few years ago and would visit the library every morning, signing out about a dozen things and returning them the next day for a replacement stack of books.
The above display is rotating weekly, until each item has been exhibited. Pictured titles include Enough is Enough by Karen Finley, Material by Jimmie Durham, Banana Rag by Ana Banana, A Remembrance of Annette by Ian Hamilton Finlay, The Radio Room (A Space), Expressionist Bestiary by Jacques Benoit, The Book of Tractations / The Book of Disappearances by Raul Ruiz, Guderna’s Mail Art Correspondence by Lad Guderna and Ed Ruscha's Every Building on the Sunset Strip, the namesake for the rotating exhibition.
The Library hours of operation are Monday – Thursday 9 a.m. to 7 p.m., Friday 9 a.m. to 5 p.m., and Sunday 11 a.m. to 7 p.m. They are closed Saturdays and statutory holidays. Their database of books and multiples is searchable, here.