3. Hang art on your bookcase. A single framed work hung on a bookcase suddenly gives the entire room a new layer of sophistication, and it's easier to get right than you might think. Hold up potential prints, paintings or photographs to get a feel for the size that works best — there is no hard and fast rule, so go with what looks right to you. Most frames will look best when hung about two-thirds of the way up the bookcase, though with smaller pieces you might have more leeway.