I own one rental home, but it was in good shape when I bought it. I would like to work towards purchasing another home that would require some work in order for it to be rented as a premium home. This is several years down the road, but I'm looking for good, comprehensive books I can read now that will prepare me for doing that work. Topics I'd like to research are plumbing, electrical/wiring, carpentry. Can anyone recommend books in these areas that would start from basic knowledge and act like a comprehensive reference material for these topics?