I like this idea. I just don't have the space available for all the wooden benches needed. I also liked the Pirate idea of one chest -- Might add that in as well. The library with the no guessing involved was cool. I could have fun with that, if I had more space. My library will be in a castle, so that has to be factored in as well.
I use wooden boxes.
Engrave them all with what they are. And also use a color coded rune that also says what the section is.
Doesn't look like a typical library but makes my life easier when I'm looking for a rune.