I love books based on survival in a post-apocalyptic world. I read the first of the books, which was apparently meant as a short story. I recently found out that he continued with the plot for another 4 books and can't wait!!
You might want to try Terry Brooks' KNIGHT OF THE WORD series if you like post-apoc. If you don't mind it being zombie-apoc, I especially recommend Mira Grant's NEWSFLESH series. Ilona Andrews' KATE DANIELS novels are also a variation on post-apoc, but with a magic apocalypse.