How to make books stand upright?

In Skyrim books can be placed on shelves by simply adding them as one would to a chest. They then arrange themselves on the shelf and are supposed to stand upright, nicely arranged. However, they often tend to fall down the moment they are placed. Is there any way to make them stand upright and stay that way?

Solution 1:

From my experience, simply filling the shelf until it's full of books will remedy the issue. Each time you add/remove books the physics are refreshed, so if you fill it up sometime later, they will all become standing. Even missing one book below the maximum for the shelf will allow the books to fall.