An attempt was made to develop and to apply a theory of manual control. It holds that the process of control begins with man and is only partially extended by control mechanisms. This study was started with man and the way he exercises control when there is no mechanism to aid him. It briefly discusses tools and control devices, and goes into detail in dealing with control systems and with the manual control process. The final chapters apply the theory specifically to displays and controls for the human operator.

Includes bibliographical references and indexes.