Although this is a very interesting book that cointains info that may be very valuable for some people, it is not what it promises to be. It says "A Practical Guide to Sustainable Communities", but, as the author explains in the foreword, the initial idea for the book changed on the way while he was writing it.
If you are somebody who whats to build an Ecovillage, who wants practical advice about others experience, get Creating a Life Together: Practical Tools to Grow Ecovillages and Intentional Communities instead.
If you just want a nice magazine-style book for a tour visiting many of the more succesfull ecovillage experiences in the world, this is a great book.
I just give 2 stars because the subtitle "practical guide" is misleading. If it not were for it, I would give it 3 and a half.