This introductory text is a revision and update of the successful first edition. While most ergonomics and human factors textbooks give emphasis to physical aspects of ergonomics, this new edition gives a broad overview of cognitive as well as physical ergonomics and provides tools needed to solve systems problems and propose adequate design solutions. Written in an accessible style, the book presents a systems approach to human factors and ergonomics that leads to complete understanding and helps to explain the myths and misconceptions in ergonomics. It shows how to collect data on users and operators and how to convert data to good design, and offers a practical guide to the design and analysis of systems.