"You left out one of the greatest of the greats: Henry Dreyfus. Of all the designers of his era, Dreyfus was the one who truly examined user-ability of designs---by the actual users, not merely the corporations he had as clients.    Of the books written by these designers "Design This Day" Teague, "Never Leave Well Enough Alone" Loewy and "Designing for People" by Dreyfus, Dreyfus's is the one the reader/designer will return to, again and again."