Newly produced pencils of the German pencil maker Staedtler can be seen in a production hall of the company in Nuremberg, southern Germany, on February 18, 2016. 
Colouring books for grown-ups may be the new lifestyle craze, promising ways to combat stress, unleash our creative spirit and generally take time out from our increasingly tech-frazzled, gadget-obsessed lives.  / AFP PHOTO / CHRISTOF STACHE        (Photo credit should read CHRISTOF STACHE/AFP/Getty Images)