And they are a long way off being the best selling books . Harry Potter sold at least 450 million while these have somehow stretched to 40 million. A long way to go there and yet people keep pointing out that its outsold the series . Thats less than 10% of the way there and the HP figure doesn't include Ebooks
'Dead tree technology!
Information that , if carefully stored , would last for millennia! And no batteries required.'
'There is no future for e-books, because they are not books. E-books smell like burned fuel.'
Ray Bradbury (RIP)