It looks like there is a door in those shelves that you get to by that ladder... could be a neat way to have a reading nook.
21 Stunning Bookshelves You’ll Want For Your Home
This is such an awesome bookshelf, love how it is framed.
Pocket French doors lead into the library and are surrounded by dark brown built-in bookcases that homeowner Scott Bailey designed. Swing-arm fixtures, ordered through Masterpiece Lighting, shine light on the upper shelves.