We converted what should have been the dining room in our house into a library and I absolutely couldn't be more pleased. While we have an overwhelming amount of books I wanted the library to serve as a bit of an eclectic art gallery too, so there are very few design "rules" we followed other than to simply include things we liked. Objects include Asian vases, African teak sculptures, Greek Bronze, Natural items. Knick Knacks can get lost of look cluttered, but when combined and placed along the bookshelves they're much more interesting.