Unless you've exhausted all the Tolstoy, Homer, Dickens, Aesop, Vonnegut, Norman Mailer, Jones and all the masterpieces of world literature I see little need to pollute one's mind reading some second-rate wannabe-survivalist novels. Not to sound cynical but time is too short and looking after one's mental hygiene is important these days (too much TV! ).

Also, getting too much into all this survivalist mindset is bad because if anything catastrophic does happen, you will probably do as you are conditioned to (deliberately or unconsciously). Like grabbing the guns and running to the hills, which might really be the worst option of all.