I'm thinking of books that contain plausible scenarios for when TSHTF, and it's basically lights out for all or most of humanity, and the book has some value in terms of imparting some real survival knowledge or a survivor mindset.

My top choices are:
1) The Stand
2) Patriots
3) Lucifer's Hammer (Have it, haven't read it yet)
4) One Second After (Haven't read it yet)
5) The Road (Have it, haven't read it yet)
6) Alas, Babylon (the first post-nuclear doom ever written)

Am I missing some good ones?