Book Shelves

I need a wall to wall bookcase because I am running out of shelf space and also I need to convert the study room soon. I think I have given all the books I need to give away, I have not been really buying books, for fear of not knowing where to keep them. I might use a wall in the TV room to install the case. Would the wall in the dining room be better?

More shelves means more books! Oh wait a minute, still have magazines lor. CHIA LAT.