I keep thinking of the character in Lucifer's Hammer
that buried a set of The Way Things Work
in his back yard before the meteor hit, so that when the initial disaster had subsided, he could go back and dig up all the volumes to help rebuild society. Of course, in that story he had time to prepare for it, but I don't think you need a truckload of books to set up a serviceable and self sustaining village. A relative handful to establish yourself after the chaos ends, and then you can branch out for more. And the survivors would probably be learning new skills at a crazy rate (or they would die). Naturalists and jacks-of-all-trades would probably do well.
And I would bet that a government like the USA probably has all kinds of contingency plans for a widespread and lasting blackout to ensure the preservation of the core government and strategic places to retain control over.