Bookshelf Idea

Ok, so. A shelf could be made by using 3 wood planks at the top and 3 at the bottom. You would use it like a chest but you can place written books in it. Every time you add a book it would show up on the shelf and eventually look just like a normal shelf. Anyway, I'm sure you already have an idea but I thought I should put my 2 cents in. Thanks :)