I have a bookcase in my bedroom which was full of books, on every shelf. But I just couldn't stand that any more.
I guess I'd seen enough glossy photos of bookcases with empty spaces in them - was it possible that I could pare down my collection in order to make spaces? I've also been so inspired by Carmella's blog - she, her husband and three boys, living in a 665 square foot space. The idea of keeping only what you need, and is of practical use to you.
So, the top shelf; I took out all of it, dusted it and put back what was useful, a week ago. Some stacked and others standing, all in the name of interest. Oh, how neat and appealing it was! A few days later, the second shelf. The same result. And the other day, the snow day, I tackled the other two shelves. Oh, the spaces I now have! The library is receiving my unneeded books.
I even have shelf space to put knitting!! Wonder of wonders.