The hardest part is actually finding a generic e-ink reader with an sd card slot that doesn't cost $500. It shouldn't need to run full android, just show a PDF or TXT, that's all it needs to do.
An offline wikipedia dump, emergency medical manual and PDR, survival manuals, etc etc like this site might go well.
I don't have one - my phone contains an offline wikipedia dump (including images), offline maps of the world including geological maps, medical manual, and my book collection, including things like http://the-knowledge.org/en-gb/.
I've got a vague plan to download the primitive technology youtube videos too.
Also, I do have a solar cell, but yeah, modern phones aren't really designed for post apocalyptic conditions surprisingly.
Fortunately, all that is also useful in tunnels, underground bars, the countryside and when travelling abroad.
Boy Scout Field Guide and an Army survival manual, sorted.
Your paper books won't last as long: today's paper is acidic and falls apart within a century.
I love old books, and this saddens me.
Though if civilization collapsed bad enough to need this I think most of the useful information I'd want saved was published in the 1800s and so out of copyright. We wouldn't be able to use the knowledge of how to make a transistor until long after even acid free paper was useless.
What are you talking about? Transistors don't require some huge industrial base to build; the first one was made with some gold and a germanium crystal. A lot of technologies don't build on top of older technologies, they bypass them altogether. Your rebooted civilization does not need to go through a phase with fossil-fuel-burning cars to get to electric vehicles, for instance. A rebooted civilization, with stored knowledge of modern technology and enough smart people able to make use of that knowledge would be able to get back to current tech levels pretty quickly, and probably avoid most of the mistakes of the past as well.
As for useful information from the 1800s, that would mean you're losing all the modern medical knowledge, which is pretty important, and much of which does not require advanced technology to utilize. Back then, they barely even understood germs and the importance of washing hands (surgeons didn't even bother!). That alone saves tons of lives, and requires no real technology at all.
I do agree that there are a lot of things we have learned that do apply, but a lot of modern medicine requires laboratories that we wouldn't be able to build. Hand washing only goes so far, can you make a polio vaccine in your kitchen? Can you make an ibuprofen pill - pure enough to safely use?
Almost room for a new hardware platform here.
Or, as was known in Fallout, the Garden of Eden Creation Kit (G.E.C.K.)
Finding a e-ink reader like that is very easy: just go to eBay, and grab any of the used Nook Simple Touch on sale. Can be had for less than $20 if you look around, and it has an SD card slot.
(Probably other formats too, but epubs are all I use)
>6922 Files, 14.8 GB
If things get real bad you could always burn it to keep warm.
In print form it's probably a better use of space than a bunch of stuffed animals but I think you're probably better off getting a bunch of cheap android phones and sticking it on the SD card and using most of that space for something else.