Series of books are too violent. The impossibility of surviving certain situations while a very high percentage of fellow characters being killed off..Show More » is annoying. The fact that we humans couldn't find a common purpose after a global calamity to work together to rebuild society is improbable at best. The author has the world constantly in nuclear war after 90 plus of the human and mammal populations are destroyed by nanobots. Overall don't waste your money on this series of books. If you get it for Free somehow then I'd say listen to it. You might be entertained by the complete absurdity of the situations portrayed in the books.