He's also an e-reader and e-publishing expert as well as the author of the novels Knife Music, The Big Exit and Lucidity. All the titles are available as Kindle, iBooks, Kobo e-books and audiobooks.

While you can't replace the feel of paper, the beauty of bound hardcovers, and the ritual of turning the page, an e-reader brings convenience and portability that, yes, a book can't beat.

Do you want to make your voice heard on today's biggest stories? Mail online's reader comments service is now bigger and better than ever before. Reader comments allows you to share your views ...

The Price to Earnings (P/E) ratio, a key valuation measure, is calculated by dividing the stock's most recent closing price by the sum of the diluted earnings per share from continuing operations ...