Donald Norman on Design

“Good design is also an act of communication between the designer and the user, except that all the communication has to come about by the appearance of the device itself. The device must explain itself.”

“In their work, designers often become expert with the device they are designing. Users are often expert at the task they are trying to perform with the device. [...] Innocence lost is not easily regained. The designer simply cannot predict the problems people will have, the misinterpretations that will arise, and the errors that will get made.”