“Without a physical presence on the shelves, the Kindle books seemed slightly insubstantial. There was no equivalent of the satisfying cracked spine. There was nothing to bequeath to the next generation, nothing to sell on to live a new life in someone else’s library. But at least the torrent of books that kept arriving had slowed down and there was space to walk up the stairs. I was being freed from the burden of all those bloody books.”