I'm a tinkerer at best and leave real gunsmithing to the pros. But I'll do basic repairs and other minor work if I think I can undertake it without screwing it up. It makes sense to me to know as much as I can about my firearms and firearms in general. I also want actual books because of potential EMP etc. Although I've relied on the internet more times than I can count, having actual assorted books and manuals is a comfort to me. I use them often because I can put my hands on a photo or text with just the search of the index. The first four I bought were the Gun Digest Disassembly manuals; Center Fire Rifles, Shotguns, Semi Automatic Pistols and Revolvers. That was quite a few years ago and my library has grown considerably. But those four still serve me well and were an excellent investment. So, do you tinker and do you have some manuals or books you think we should have or something that's just interesting? BTW, AR 15 guys, is the new bench manual by Peter Sweeney a good one? It was published last year?