My foreign department have two big built-in bookshelves...? I don't really need any books to do my job. What else...

I don't really need any books to do my job. What else can I put on the shelves?
I involve a bed/mattress thats going on for...
Answers:    picture frames, plants, pretty book ends, some favorite books you close to even if not work related, knick knacks that have a special worth to you...
or baskets that you can just put stuff into and know where to find things when you obligation them.
Hope this helped...