Zustand: New. Christopher Day draws on his extensive experience to explain the key principles of eco-home design, focussing on natural methods rather than expensive technology. Series: Sustainable Building. Num Pages: 256 pages, 75 black & white illustrations. BIC Classification: AMC; TNK; TNT. Category: (P) Professional & Vocational. Dimension: 209 x 255 x 31. Weight in Grams: 834. . 2016. Paperback. . . . . Books ship from the US and Ireland.