Not to mention people have a tendency to read deeper when its a paper book rather than an e-book. http://www.pri.org/stories/2014-09-18/your-paper-brain-and-yo

Not to mention people have a tendency to read deeper when its a paper book rather than an e-book. http://www.pri.org/stories/2014-09-18/your-paper-brain-and-your-kindle-brain-arent-same-thing http://www.pri.org/stories/2014-09-18/your-paper-brain-and-y...