Individual BrickBoxes can be reversed so as to display books or other items on one side or the other, correspondingly adding white space to the composition of the other.
Each box can be broken back down, packing flat for extra portability (if not being used to transport books). Their only hint of decor comes via the light wooden edges, adding smaller detail to the larger white-painted surfaces.
Finally, each set of boxes can also be firmly interlocked for more permanent shelf storage, and/or raised up on casters and wheeled around a room. Currently, the the BrickBox is only for sale in Europe — and not entirely cheap, but nor is it cheaply made — via Dornob