I have the one bookcase (which is really a curio cabinet that matches my bedroom set, thats why the glass shelves) which has my SK s/l, my Poppy Brite collection and a few other books that are really special to me.
The other bookcases that I got from Homedecoratorscollection.com hold my signed first editions which are in the cabinet thats to the left of the bookcases in the library picture, the bookcase to the left in the pic holds my small press s/l and my SK (non s/l) the other 3 bookcases in the pic hold mostly reading copies and some other authors first editions.