With YT having taken down more and more gun related vids, can anyone recommend any physical paper books on how to build/maintain various guns? I dont want to be dependant on a resource that can be removed or blocked on a whim. I know theres other resources such as Guntube and Gunstreamer but looking at the internet itself as a resource, it can be taken down by any of our government agencies and leadership. I'm looking to be prepared. Anyone have any recommendations? Sorry if posting in th red wrong forum but figured this was the best one.