Jeffrey and I have both been reading and re-reading the books we have on home building. Our friend also loaned us some of his including his Earthship series. Wow those are great. Most of the books are geared towards green building methods. The most helpful book has been "Earth-sheltered Houses" by Rob Roy. We keep coming back to it over and over. There used to be about 2 dozen slips of paper marking important pages, but my butter fingers dropped the book and most fell out! Now I have a 3 ring binder on each house building topic and have been taking pretty good notes; writing down which book has the best instructions, photos or drawings on that topic.