Gypsy Wanderer Husky
I highly recommend for every one to take a first aid course (and refreshers every 3 years!). While I can read a book on homesteading or guns mitring, first aid training is really meant to be learned hands on. There’s also no time for someone to dig through a book during an emergency. Finally, for about $100 and a weekend, this is a small investment to make that could serve you not only after SHTF but any day, any time.
$600 and a week (or a couple of weekends) can get you a medical first responder certification. Each groups should have someone trained (and equipped) at that level in my very humble opinion.
Prepare for the unknown by studying how others in the past have coped with the unforeseeable and the unpredictable.
George S. Patton