I started The Change Series by S.M. Stirling a few years back... it sort of gives a different take on prepping. In the story, electronic devices and fueled items don't work: no guns, no cars, no lighters... nothing. It's back to archery, farming, and open fires. The first book is called Dies the Fire and was great on audiobook. Really makes you rethink the backup plans for things like generators and even guns.
Reading the series 299 Days by Glen Tate. He is a member on another forum I read www.thesurvivalpodcast.com. He has published 4 in the series so far and there are 6 more coming. Definitely recommend.