I am installing some shelves on brackets to be bookshelves. I’ll probably use oak plywood and edge band the exposed edges. My question is, are some finishes not advisable for bookshelves? These shelves will have actual books on them, and I don’t want anything that will mar the books in anyway. I’m leaning towards shellac, but I’m not positive. I would like something I can spray (lots of shelves) but wipe on is ok too. Something that will take transtint colors would be good, if I decide I want to alter the color.