This book discusses various topics related to ergonomics which is described as the scientific study of people in their working environment. It evaluates the relationships between workers and their work environment from various complementary perspectives. This book examines topics related to physical ergonomics such as lower and upper limbs, low back ailments, and some ways and tools that can be used to tackle them. The subject of organizational prospect of work within the book highlights how dynamic, flexible and reconfigurable assembly systems can properly respond to changes in the market. The topic of human-computer interaction presents related issues such as usability, user-centered design and user experience design showing framework concepts for the usability of engineering lifecycle aiming to enhance the user-system interaction. The book also discusses various topics related to cognitive ergonomics such as critical thinking skills and cognitive work.