People identify with the spaces they helped to determine, and naturally appropriate them. As a producer of such anarchic work, it is perhaps surprising to discover that Hubner has also long been at the forefront of CAD, but this is a natural development of systematization, for if computers can calculate all the variants and regularities, we need no longer conform to Ford's production line. Hubner uses three-dimensional programs which connect design directly with production. His work also responds to Green concerns, not only through the use of recycled and low-energy materials and in avoiding toxicity, but also in passive energy collection. All these issues are explored in the book.