A bookshelf that you can actually open in VANILLA minecraft!!!!

Go to or build a library --> Go to a corner of bookshelfs --> place a block in the corner outside the library --> place rail on it --> place a minecart with a chest renamed as 'Bookshelf' --> breake the blok under neath it --> place blocks around it to make sure the cart doesn't move --> there you go :D

Enjoy the video :D