This furniture arrangement shows a comfortable conversation area. All of the seating is close enough so that you can sit and speak to each other comfortably. The living room is fairly narrow, yet each piece of furniture has a little breathing room. The sofa has a console table behind it allowing some accessories to be placed there for interest.
The chairs are pulled forward enough to allow the drapes to move freely. The narrow, oval coffee table allows plenty of room between it and the seating, while still being within easy reach to place drinks.
This avoids Mistake No. 4: Pushing furniture back against the walls and too far apart from each other.
Many people would have taken one look at this living room and shoved their sofa back against the wall and the chairs all the way back to the drapes with a big coffee table in the middle.
Rooms actually look bigger when the furniture is a little bit away from the wall — even if there isn't enough room to walk behind the furniture. If your sofa is shoved all the way to the wall, put down your laptop, go pull your sofa about 6"-8" forward and see if that doesn't make the room feel a little better.
I would rather use a rectangular or oval table and have my furniture a little farther forward than to have a larger coffee table with the furniture tight against the wall.
Conversation is also more comfortable when the furniture is closer in to each other.