I read the first few chapters of the book, then decided this is too big of a project to take on right now! I skimmed the rest of the book and intend to come back to it when a greenhouse is more realistic.
The book is very complete. The author includes pros and cons of different designs and materials, tips for select a size and shape, charts for figuring out the cost, etc. Then, he goes on to give specific building instructions for a number of different greenhouses - including electrical wiring, laying the foundations, lighting and more. The book even includes information on details such as getting permits and hydroponics. Very comprehensive.