Some guy that is banned from here, I can't find his site anymore, suggested this long ago. Yes you can carry hundreds of books on one, but anything technological can and will, eventually fail. And most often when you need it the most. A pet hacker once loaded tons of books on an old laptop for me, and it's at my cabin. But I've read each book at least twice so I can hopefully remember something when it breaks down, and not sit drooling as I stare at a blank screen. I have huge libraries at the ranch at the cabin. Books don't break down like electronics and are not subject to EMP. But if you go with an e reader I would suggest packing one of those roll up solar panels to power it. Hope this helps.