Both interesting photos. As much as I hate to admit it, I'm rapidly becoming a fan of e-books. Very practical.
I prefer paper. Going in a bookshop or walking over a market, picking up a book, read the back and going through it, buying with real money, reading it, putting it in the bookcase where it reminds you on what you've read everytime you see it. And you can build a cave or an outdoor public bookcase .
George