Frank Gilbreth (1868- 1924) is an engineer and management scientist, and one of the pioneers of the scientific management movement. His outstanding achievements are mainly manifested in action research. Lillian Gilbreth (Arbour. . LmanM, 1878- 1972) is Frank's wife. She is a psychologist and a management scientist. She is the first woman in the United States to receive a doctorate in psychology, and is called "the first lady of management".

The main contributions of Mr. and Mrs. Frank Gilbreth in management thought are:

(1) Action research. Adhere to the "action economy principle" and extend this principle to workers, which greatly improves work efficiency.

(2) Explore the interaction among workers, work and working environment.

(3) Fatigue research. It is suggested that music should be played at work to reduce fatigue, and the society should be called upon to give priority to eliminating fatigue.

(4) Pay attention to system management. Frank Gilbreth believes that there is an optimal management method for any work, and these methods should be systematized into a system that everyone should follow.

(5) Pay attention to the people in the enterprise.