Great book with some excellent ideas that are transportable across house styles and geographic areas, but I wish it had more real life examples from places other than California, with homes other than midwest-modern styles. There were only two homes out of dozens that I could directly relate to, and only one was a pre-20th century home. Still, the general information is well-written, concise, and applicable to many types of homes. Excellent information about microclimates and making your home more in tune with its location and the surrounding ecosystems. I would recommend it to anyone interested in making changes that will lower your energy footprint while preserving the personality of your home, and improving the livability of your own personal space.