Doors are a must to keep out the dust. Anything really tall, you would have to latch onto studs onto the wall. I like shorter cases. I have two really nice matching ones that are oak and I painted them the shelves are basically standard. I old off a lot of books, but I need one more case that has adjustable shelves because of some of the newer editions made ungodly too big. This one I will add a link as to something I have been looking at. But personally, it is nice to find used furniture is furniture has bad resale value.
https://www.overstock.com/Home-Garde...=&searchidx=40