What a waste of money and time! I bought a Kindle version. If you want to learn about building homes of hempcrete better find a book with a lot of photos and less words. Very expensive for a few crumbs of useful information in this book.
If you have any thoughts about building with hempcrete or want to understand this method, this is the definitive reference. Be sure to get the hard copy since the illustrations are excellent, detailed, and essential to understanding how to build.