While it looks more like a retail space than a residence, this library that is part of the Collector's Loft by UNStudio is nevertheless appealing. I think this is the case because it is a space devoted to books that is just off the main living space; the plan shows how the narrow space follows but peels off of the larger loft space. Living with a wall of books in the living room, their presence can often be overwhelming...physically and mentally. In this loft the living area is gallery-like with lots of art, and the library is like a parallel world that one does not have to look at all the time, but which is just as important to the owner.
[Collector's Loft by UNStudio, 2010 | photo by Iwan Baan]
(Spotted at Architizer/world-architects.com)