A lovely read. If I lived by myself my bookshelf would be large and plural. However, sharing space with my wife who likes to go Zen I have only one bookshelf, in that way I can fill a room with my art and musical instruments. It is not stratified like yours. My large books are on the bottom (mostly art) because they fit. Most books are ones I will read multiple times or refer to them. Most are metaphysical, spiritual. A few fiction as I rely on libraries if I go that route. My books are on a shelf below my altar. I love just fondling books and smelling them.