Please everyone, read this book. It's sad, disgusting and heavy, but it's probably a documentary for events that may happen one day. It's very well researched and the plausibility and realism make it even scarier. It hasn't turned me into a prepper, but in part motivated me to make our house as self-sufficient as possible. Also it made me aware of small useful things in my surroundings that I used to be blind to.
What would be the impact on everyday life if a nuclear EMP destroyed all electronics in our lives instantly? First there are a lot of dead from car / plane crashes, then most patients in hospitals, then many due to running out of water and food. And what's left of the society then collapses into barbarism, violence and fighting for resources.
It's possible something like this would happen should the nuclear weapons of today be used. The book is hard to stomach, but everyone should be aware of the possibility and be at least knowledgeable in survival without modern technology (if not outright stocked up in a doomsday vault).