Book sales in the UK are on the rise, but not because of ebooks. Figures for 2016 released by the Publishers Association show a 7 percent rise over 2015, the largest year-over-year growth in a decade. Physical book sales were up 8 percent, however ebook sales fell by 3 percent to £538 million. The biggest contributor to the drop? What the industry calls "consumer ebooks" -- novels, autobiographies and the like -- which slipped 17 percent to £204 million. As The Guardian reports, the numbers suggest a shift back towards printed books. We spend much of our time on smartphones, laptops and tablets, so for many reading is an opportunity to disconnect.