Give your books movement
Sorting books by collection or size provides a " tidy " effect but freezes your library into a monolithic block. Of course, there's no question of separating the ten volumes of an encyclopaedia or the complete works of an author. But for the rest, juxtaposing books of different sizes and thicknesses brings life to the shelves and evokes curiosity of mind.
Use beautiful book covers
Art books feature magnificent, highly decorative dust jackets. Don't hesitate to use some of them as paintings by placing your most beautiful books face down on your shelves. Some literary books can play the same role, due to the elegance of the edition or the beauty of the title.
Install intruders on the shelves
A statuette, a painting, a small car, a pebble painted red, an old glass snow globe found at a jumble sale, an impromptu book-press... Feel free to alternate spaces devoted to books with breathing space occupied by an interesting object. On the other hand, avoid large holes, which give an unpleasant feeling of emptiness, unless of course you want to put a television in this niche.
Play with colour
What if you arranged your books by colour? An economical way to decorate without any accessories! However, this presupposes that your shelves are all the same height, so that they can hold books of very different sizes. But there are other ways to add colour to your bookshelves: by placing brightly coloured objects on them, by displaying flat dust jackets that are all in the same shades, or even by designing a Mondrian-style bookcase!
Create visual relays in the rest of the room
An exhibition poster that echoes a dust jacket, lighting that highlights an art object in the shelves and another on a chest of drawers are examples of how to integrate your library with the rest of the room. You can also divert certain books from their primary function and turn them into decorative objects, framing them and displaying them on the wall like paintings, stacking them like bricks to make a coffee table... Or play with large wall letters to make a nod to the typography of your books.
Regularly change beautiful books and objects of place
A library must be alive! New books arrive, others come out... But above all, remember to regularly renew its general appearance. All you have to do is move a few objects around, replace an art book on display with another, change the direction of some books (lay them down if they were straight or the opposite), change the order of the colours, orient the lighting differently... There's nothing more practical than a library to renew your decor at any time!