Building on the outstanding success of the previous editions, this new edition reinforces its original three-part structure: Part I provides an introduction to design, Part II presents design methods as the core feature of the book and finally, Part III puts the methods into a wider context of managing the overall design within the business process of planning and developing new products. Substantially revised and updated, this text also contains two completely new chapters: * Design Ability, which takes advantage of the new knowledge about design cognition and designers" activities, and * Product Development, which also covers the most recent thinking, including the broader business context of design activity. This third edition will remain at the forefront of engineering and industrial design as as essential text for students and lecturers, as well as practitioners.