This tenth edition updates the material of the previous edition so that it corresponds with recent technical changes, though the foremost reason for the revision is to emphasize the importance of ergonomics and work design as parts of methods engineering. The textbook integrates both the traditional elements of motion and time study and the human factors of ergonomics into one book. In this day and age, the industrial engineer needs to consider both the issues of productivity and their effects on the health and safety of the worker simultaneously, something this volume aims to help with through its offering of questions, problems, and sample laboratory exercises and its online provision of forms and information.