"The Principles of Scientific Management" is a book written by Frederick Winslow Taylor and published in 1911. Taylor was an American mechanical engineer and management consultant who is widely regarded as the father of scientific management, a philosophy that aimed to improve industrial efficiency through the scientific study of work processes.

In the book, Taylor lays out his principles of scientific management, which include breaking down work processes into smaller, simpler tasks, measuring the time and motion required to perform each task, and using this data to establish standardized methods of work. He also emphasizes the importance of training and development for workers, as well as the need for cooperation and collaboration between management and labor.

Taylor argues that by applying scientific methods to work processes, organizations can achieve greater efficiency, productivity, and profitability. His ideas were influential in the development of industrial management practices, and continue to be studied and debated in management and organizational theory today. However, Taylor's ideas have also been criticized for dehumanizing work processes and treating workers as mere cogs in a machine.