Alas, Babylon by Pat Frank.

Alas, Babylon by Pat Frank. . Cover got chewed on by puppy. It doesn’t affect the pages and is readable. Just the front cover at the top. The classic apocalyptic novel that stunned the world. When a nuclear holocaust ravages the Untied States a thousand years of civilization are stripped away overnight. But for one small town in Florida, miraculously spared, the struggle is just beginning. Great book!