Digitalization concepts and methods have, in recent times, drawn the interest of researchers and academics, especially in design and manufacturing. Modern product design integrates advanced CAD/CAE/CAPP/CAM/PLM and computational tools as a means to automate tasks and increase the quality of the designed product, while reducing manufacturing cost and the time-to-market. The same is true that in the era of artificial intelligence, digital manufacturing is a fast-expanding focus of research that includes not only pure manufacturing topics but also additive manufacturing, reverse engineering, simulations of material properties for strength, manufacturability, and optimization of manufacturing processes. The book aims to cover digital tools and methods that offer additional advantages for designing and manufacturing products in a variety of industries. Furthermore, the book reviews green digital design and green digital manufacturing in the context of a circular economy.