I am a KonMari failure.
I tried to apply her principles from "The Life Changing Magic of Tidying Up" to my bookshelf. I carefully evaluated the books, then I tried to chose ones which would not be useful, or spark joy, and get rid of them. I failed.
As a homeschool mom, with a two year old, there are very few books he has outgrown. Of course, any of the out of print books are off limits. Who knows if I can find them again? Many of the literature books are read again and again, and the beauty of our home library is that there are no late fees. As an avid reader with very little time, my list of books to read grows ever longer as does my "to read" pile.
My latest attempt to cull the shelves was an abject failure. I threw in the towel and bought another bookshelf. Maybe I'll try again when they're out of the house. Of course, by then, there will be grandchildren...