The Psychology of Management: The Function of the Mind in Determining, Teaching, and Installing Methods of Least Waste is a book written by Lillian Gilbreth which investigates the psychological aspects of scientific management, incorporating concepts of human relations and worker individuality into management principles. Published in 1914, it is a major early work in the field of industrial psychology and scientific management. [1] A contemporary book review reflects early resistance to scientific management, stating the book "does not answer the really important questions about the effect of standardized work upon the worker".