The book on Computer-Aided Design and Manufacturing provides a comprehensive exploration of the principles, technologies, and applications that define the integration of digital tools in the design and production of goods. It serves as an essential guide for students, engineers, and professionals involved in the fields of mechanical engineering, industrial design, architecture, electronics, and manufacturing. The text introduces readers to the foundational concepts of CAD, detailing how digital systems are used to create precise 2D drawings and complex 3D models that streamline the design process. It also elaborates on the role of CAM, explaining how computer systems translate design data into instructions for machines used in fabrication and assembly processes. The book highlights the historical evolution of CAD/CAM technologies and underscores their growing significance in modern industry. Through well-structured chapters, the book covers topics such as geometry creation, modeling techniques, simulation, tool path generation, process planning, and the integration of CAD and CAM systems. It discusses how the synergy between design and manufacturing has revolutionized industries by reducing time-to-market, improving product quality, and enhancing design flexibility. Emphasis is placed on the importance of accuracy, efficiency, and collaboration, as well as the economic and environmental advantages brought by digital transformation in manufacturing work flows. Special sections may also touch upon advanced topics such as CNC programming, additive manufacturing, digital twins, and the use of artificial intelligence in optimizing CAD/CAM operations. In addition to technical explanations, the book presents real-world examples, case studies, and illustrations that provide practical insights into how CAD/CAM systems are applied in various industrial settings. The text encourages critical thinking by discussing challenges and innovations in the field, and it often includes exercises or problems to reinforce learning.