Black on Black
Since the catalogue was not intended to be sold, it was possible to eschew the traditional assumption that a cover should define or be indicative of its content. Instead there was an opportunity to create an enigmatic and alluring object, the abstract qualities of which demand attention in their own right.
I think the intention to create an enigmatic and alluring object has been met as a result of the absence of any sort of adornment (like text or graphics) on the front cover. The contrast between the shiny and matte surfaces on the cover is also very nice.