Another pleasing effect is to use one shape to lead the eye to another similar shape. In this photo, the rectangular table acts as a classic "T", leading your eye straight towards the focal point of the fireplace. Both shapes reflect the rectangular bump-out that accommodates the fireplace.
Does LR fireplace have to stay where it is? If we turn it into a round library, could we move the fireplace and create a barrier between the library and the DR that has a see through fireplace?
S.A.