I myself have too little books for, but what I find cool are: a wall full of books. No book shelf or Cabinet, but a whole wall full. the library I find a nice place, I can spend hours there. Little look around, browse books. Such a space full of books has something magical and that can at home so too!
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With a wall to create a kind of home library books. No simple easy reading corner, but a reading room. Make books a room personally. A wall full of books can maybe some messy eyes, but I find it radiate cosiness. All different colors of the bookcovers are decorative and make it an expression of art. In these rooms, I would just like to spend hours in the library.