Like Sopho-Soph, I often sit between the shelves. In my library, the downstairs is where all the fiction and videos are, as well as the desks, chairs, and computers. That's pretty much where everyone is. Upstairs, which is narrow level that sits half-way up to the ceiling over the downstairs, is non-fiction, which is where I like to hang out. I just like to browse the shelves. I'll get together a pile of books, and go sit between the stacks somewhere on the second level. There's never anyone up there, and the noise from the first floor is muffled as well. Nice and peaceful.