This book describes the growing field of multi‎-criteria decision making ‎(‎MCDM‎)‎ as applied to materials selection in product design‎.‎ Useful in academic and research contexts‎,‎ as well as to practitioners in materials engineering and design‎,‎ it aids readers in producing successful designs by improving the decision‎-making process in materials selection‎.‎ It is a constant challenge for designers‎,‎ even when educated in the fundamentals of materials and mechanical engineering‎,‎ to select the best materials to satisfy complex design problems‎.‎ Current approaches to materials selection range from the use of intuition and experience to computer‎-based methods including electronic databases and search engines‎.‎ Increasingly‎,‎ MCDM methods are proving effective in materials selection for complex design problems‎.‎ These methods supplement existing quantitative methods‎,‎ such as selection charts‎,‎ by allowing simultaneous consideration of design attributes‎,‎ component configurations and types of material‎.‎ It discusses the rationale for optimal materials selection in the context of achieving the best engineering design‎.‎ It describes methodologies for supporting enhanced decision‎-making in materials selection‎.‎ It includes end‎-of‎-chapter review questions and practical case studies from biomedical and aerospace engineering applications‎.‎