This copy is for your personal, non-commercial use only. Distribution and use of this material are governed by our Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contact Dow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com. http://jp.wsj.com/article/SB10001424127887324828304578222811734272622.html
![電子書籍リーダー時代はもう終わってしまったのか](https://cdn-ak-scissors.b.st-hatena.com/image/square/59f9a09ebe65fd91147b0b6cca9d9f018e8eed30/height=288;version=1;width=512/https%3A%2F%2Fs.wsj.net%2Fpublic%2Fresources%2Fimages%2FOB-VW317_0103er_G_20130103202042.jpg)