These don't fit in with rest of the books being listed but the are great for info. My fatherinlaw gave me a whole bunch of these books from the 30's to the 60's. They teach you how to do practical stuff with what you have laying around. How to build everything from a shortwave to a tractor. How to do blacksmithing, carpentry, veterinary, farming, surviving a Nuke(duck and cover), mechanics. They have just about one of everything.