Before reading the whole paragraph you may instantly inform me that this is not a bug, but I still consider it as one, because a normal person in real life can neither spot a similar-looking bookshelf nor take a book from one if they indeed see one in an impossible way. I know Minecraft may violate the most basic physical laws IRL, but at least you don't want to create an in-game product which is eccentric to look at, right? Absolutely no aggressive meanings between the lines. But as far as I'm concerned, a bookshelf which has two sides of books, and can always look on to you (caters to the direction you are facing) is much more better to appreciate. Thank you! Hope you can take my suggestion into consideration, and sorry for the time I take from you.