The SAS Survival Guide is the best and there's a pocket edition for $7 at amazon. My four year old LOVES this book and I've actually learned a lot from it.
Physical books are good, but finding the right ones is key. Having a huge library of physical books will be a problem if you have to bail on your place. I've had this for a couple of years and it is invaluable:
http://www.amazon.com/gp/product/0061992860?psc=1&redirect=true&ref_=oh_aui_detailpage_o09_s00
If electricity isn't a problem, then having a good e-reader or tablet can save a lot of space. I have a 64gb stick with all of my survival books and videos on it. I have scanned version of all personal documents as well; still have plenty of space for a lot more information.
Having certain skills mastered and practiced frequently is better than having to rely on your library every time you need to. Having a library, means that there is less stress on having to remember everything. I've found that aquiring certain books with adequat information and keeping the library small is best.
If you have a secure location and don't plan on leaving then it's not an issue. I would have a digital version/backup just in case. I'd also scan all personal documents into folder as well.
I'd going to answer in two posts here, this one will link stuff to websites or amazon for physical books. The other will be more discussion based. (e.g. this is just a raw data dump.)
I have used some google foo and I'm willing to post links, note that many of these will overlap (that is they have the same free PDFs or HTML pages etc.) Others are a bit further out there, e.g. magnetic pole reversal etc.
You get the point though people compiled whatever they though the world might need after aliens, the clintons took your guns, or trump and putin nuke everybody, global warming, plague, etc. Since it takes a massive amount of work to put these together and most people are not dedicated enough to do so, they all have the flavor of whatever the person building them thought was most important.
Here is a list, use from it what you can. Including in the list are things like RACHEL, hardware hotspot for wifi that any computer can connect to, like a library box or pirate box. Many of these resources are focused on and in use in 3^rd world nations. things like the one laptop per child might be a perfect resource to allow some technology designed cheaply but ruggedly to have to access this stuff.
https://en.wikipedia.org/wiki/CD3WD
https://worldpossible.org/rachel
http://www.appropedia.org/Welcome_to_Appropedia
http://www.fastonline.org/CD3WD_40/CD3WD/INDEX.HTM
cd3wd torrent magnet link. 2012 version
dropbox link for torrent files for the above if the magnet or trackers aren't working.
Pole shift library magnet link
Need 55 gigs of wikipedia offline? get it at this link
http://www.cs.amedd.army.mil/borden/Portlet.aspx?ID=cb88853d-5b33-4b3f-968c-2cd95f7b7809
http://hesperian.org/books-and-resources/
https://modernsurvivalonline.com/survival-database-downloads/
https://www.amazon.com/gp/product/0061992860
https://www.amazon.com/gp/product/0452295831
https://www.amazon.com/gp/product/1570618402
https://www.amazon.com/gp/product/1933392452
https://graywolfsurvival.com/3083/documents-need-bugout-bag/
My son loves this one: https://www.amazon.com/SAS-Survival-Guide-Collins-Gem/dp/0061992860
This here? https://www.amazon.com/dp/0061992860/
Everyone has a different take, but this is one I think is a good start:
http://www.amazon.com/SAS-Survival-Guide-Collins-Gem/dp/0061992860
However much water you have, you need more. Food is so highly overrated in these situations. You can last weeks without food, but only days without water. Also, if you eat when dehydrated, you can die a horribly painful death.
Also, looks like you've got the full SAS Survival Handbook. I strongly recommend you ditch it for the much smaller Guide.