This is a very good intro book to the subject. it doesn't overwhelm with technicalities and other specifics. Besides giving some basic background, it features 13 NewYorkCity projects, giving each a four page spread, with one large photo, several smaller photos, some basic data, such as cost per foot, size, contributors, etc., a two page blurb and "lessons learned." This is a good book to begin the thought processes. It also features both professional and do-it-yourself projects and a variety of methods and goals. A modular bag system was sucessfully moved and returned in order to make repairs to the roof. Another shows full scall veggie gardening. Another adds a backyard garden feel (complete with added kitchen and covered porch) to a six story older building, by vaccuuming the soil media up to the roof. There is a non-intimidating section that introduces methods and materia. Excellent!! ( )