Sold more than 20,000 copies in hardback; The complete guide to home improvement the environmentally friendly way; Details small, economic changes that can be made (including improving energy efficiency, water saving tips) to more dramatic overhauls (such as redesigning room use, extending your home); Terence Conran is the undisputed authority on design and his books, notably The Essential House Book and The Ultimate House Book, are international bestsellers; Includes more than 300 colour photographs.