The hammock is a great idea so smaller "secret playroom" areas. This kid’s bookshelf opens to a secret reading nook. A SECRET READING NOOK. I would’ve never left. (from Everything About Secret Bookcase Doors)
Book Nook in a fireplace that is no longer usable. Very creative use of space. Just make sure to clean that fireplace well before putting any books in there and to seal things to prevent water damage or pests from coming down the chimney.
Bookshelf Stairs: Levitate Architects of London designed this bookshelf staircase to combine storage space with access to a loft bedroom. The skylight above provides enough daylight to read a book while you sit on the stairs!
Not sure what I think about using lighting in side the cabinets in the craft room. Maybe glass front cabinets on top of it? I tend to put small lamps into book shelves. So we are going to need outlets in the bookshelves. Any bookshelves in the house.