The first thing that strikes me about this book is the extremely low quality of production. The second thing that grabs my attention is the $25 price tag - for a soft cover book with 230 pages and very few photos. The photos it does have are of extremely poor quality and half of them are from the 70's. On page 183, the author describes himself as "an irresponsible, frequently-intoxicated hippy". With the price he is charging for the book, be must be drinking Chateau Lafite. I have to take away 1 star for price gouging.
Having said that, the author seems to be just about the only person around advocating earth-sheltered greenhouses. The concept is simple and I have to wonder why it's not more common. In fact, it's so simple that one only needs to read the article by the author on the Mother Earth News Website. I read that article and found the concept intriguing, so I bought the book, expecting some formal, in-depth research on the subject. All the evidence in the book supporting the concept is from the author's personal experience and vague "recollection". I would like to see some university or professional research on the subject. I am in the market for my first greenhouse, but I'm still undecided after reading this. Take away 1 more star for lack of formal test results.