Or better: Zeit(=time) space problem, 
because I had to find space for the 20-volume ZEIT lexicon – which is already almost three years old, but now, as the WELT will soon release their own lexicon, of course at a discount for 139,- (in the “bild der wissenschaft shop”), i.e. basically for 1 cent per page (and thus clearly cheaper than the competition, and with more pages, more words, but less images and without DVD-ROM).
Pictured here not yet on the bookshelf, but on the floor in front of my comic shelf:
):
