Digital book sales have outstripped traditional print sales in Britain for the first time. So far this year, 114 downloadable Kindle titles have been sold for every 100 hardback and paperback books, said online retailer, which started selling Kindles just two years ago.

‘Customers in Britain are now choosing Kindle books more often than print books, even as our print business continues to grow,’ said Jorrit Van der Meulen, vice president of Kindle EU. ‘We hit this milestone in the US less than four years after introducing Kindle, so to reach this landmark after just two years in Britain is remarkable. It shows how quickly British readers are embracing Kindle.’

Mr Van der Meulen continued: ‘As a result of the success of Kindle, we’re selling more books than ever before on behalf of authors and publishers.

And thanks to Kindle Direct Publishing, thousands of self-published authors have also been given an outlet to share their work with the millions of Kindle readers worldwide.’

E.L. James is the Kindle store’s most popular author. Her Fifty Shades trilogy has sold more than 2million digital copies in four months. On Kindle Direct Publishing, any Amazon user can upload a book as a Microsoft Word document, set a price, then choose a cover image.