Wertwerke was founded in Berlin in 2012 by Sascha Czerny, Wertwerke translates as Work of Value, and indeed Sascha’s clocks are works of Value. He has managed to give his clocks a timelessness and elegance one would never expect to find with concrete.
DIY "Floating Bookshelf" Add two tiny nails just under the brackets. Open the bottom book, and used the nail to hold the cover closed. This hides the bracket completely, making the bookshelf invisible.