Postcollapse books recommended by reddit

The most-mentioned books on r/PostCollapse.

SAS Survival Handbook
4 users
The Knowledge
4 users
How to Survive the End of the World as We Know It
4 users
Lights Out
4 users
Where There Is No Doctor
4 users
Lucifer's Hammer
3 users
Patriots
3 users

Looking for more? Similar subreddits are bulletjournal, cars, guns, preppers, and Survival.