https://phys.org/news/2018-06-blame-netflix.html > The number of people buying books in Germany plummeted by nearly 18 percent between 2013 and 2017, the study commissioned by the German Publishers and Booksellers Association found. > The drop was even steeper at 24 to 37 percent among those aged 20 to 50—the same age group that now spends more than three hours a day on the internet.