Apologies if this is posted elsewhere. This is a collection of free PDFs which I came across. There are some very interesting titles there. Enjoy!
seasonedcitizenprepper.com

667 Free Survival PDFs, Manuals and Downloads [Updated 2025 ]
Some of the oldest, time-honored survival books and manuals, all available for free download in PDF form. Army field manuals, food storage, and more.
