Phaidon design classics : [industrially manufactured objects of aesthetic value and timeless quality: 1 definitive models of lasting influence and enduring significance; 2 objects that are innovative in their use of new materials and unite technological advances with beautiful design; 3 objects characterized by simplicity, balance and purity of form; 4 objects that are perfect in their design and have remained unchanged since their creation] (Phaidon Press, 2006)