So I thought there was a thread on this already.   I counted yesterday and I have 8 bookshelves across 3 different physical locations with twice as much stuff stacked on the floor.   I've started a program of organization and pulled all my decent hardcover books on to a single shelf.  The books only took up this small shelf.   The lesser books, binders, magazines, etc take up all the other space.   Got a picture of your books?