Recent research by the Nielsen Norman Group found that it takes longer to read books on a Kindle or an iPad than in print. On average reading speeds declined by 6.2% on the iPad and 10.7 on the Kindle compared with print versions. I personally think I’m reading much more in volume on my iPad and iPhone, simply because it’s more convenient and accessible way of processing information. I believe once we read more on portable devices such as iPad and iPhone we’ll develop our ability to read ebooks faster than print books. The sales of ebooks on Amazon overtook the print sales for the first time last Christmas. Read more on this study