What would your contribution be for a book put together to restart a a civilization?
The title is a bit over dramatic but, per the title, if you could contribute with one piece of knowledge to a book that every single individual should learn from in order to kickstart a civilization, what would be yours?
My personal choice would be the process of soap making, from scratch.
Ever since covid hit, I've been keeping digital copies of several books like the following:
Reader's Digest DIY Manual
The Forager's Harvest - A Guide to Identifying Harvesting and Preparing Edible Wild Plants by Samuel Thayer
The Complete Guide to Edible Wild Plants
Back to Basics - Abigail R. Gehring
And of course a copy of Wikipedia.
I haven't gone full "prepper", but seeing how fast things went sideways at the beginning of covid, it makes me feel a little better to set aside a little bit of hard drive space, just in case.