Business and industry have learned that their products ought to be aesthetically pleasing. A large community of designers exists to help improve appearances. But appearances are only part of the story: usability and understandability are more important, for if a product can’t be used easily and safely, how valuable is its attractiveness? Usable design and aesthetics should go hand in hand: aesthetics need not be sacrificed for usability, which can be designed in from the first conceptualisation of the product.
Donald Norman, The Design of Everyday Things, Doubleday, 1988