I like the idea of small recessed lights above the bookcases.
How Much for Those Gorgeous Built-In Bookshelves
Built In's - mostly open shelves with drawers.
Clever book shelf
This is the perfect place to put a pull out bed! I always look at those beds and thing they're impractical because it's too hard to leave all of the open floorspace needed for one but I'd happily do it for this library/reading space.
Columpio fácil de armar
Columpio fácil de armar - momtastic.com - DIY Tree Swing