Awsome "stair-case" from designer Danny kuo. This sort of book case would be very handy and look fantastic in an area with high vaulted ceilings. Then you could run a book case from ceiling to floor and actually be able to get to the top without the use of a ladder. I just think this is a very well designed and well thought out project that solves the problem of not being able to easily see what is on the top of your book case. A little about the project then check the link to Danny kuo's portfolio below that.
"The initial keywords: space, storage, future. In the future space becomes more desireable, because the big appartment buildings are taking over the normal 1, 2 or 3 level houses. It's more efficient because you will need less square meters to house people. therefore the focus for the future is on height and not in width. But current storage furniture is designed for average humans with a length of approx. 1.8 meters so everything is reachable. So to be efficient also our furniture needs to grow in height in stead of width. This StairCASE is the result of these facts."kuo