The Fourth Edition of CAD/CAM: Principles and Applications delivers a modern, updated approach to computer-aided design and manufacturing. With significant revisions and newly added topics, the book addresses the latest advances in modelling, simulation, quality control, adaptive systems, and production planning. Clear explanations, real-world examples, and solved problems make this edition both student-friendly and practically relevant. Each chapter is structured with defined objectives, illustrations, summaries, and exercises to support step-by-step learning. Expanded coverage of design methods, finite element analysis, and computer-integrated manufacturing ensures a balanced treatment of theory and application. Organized into five comprehensive parts, the book guides readers from fundamental principles to advanced techniques, bridging classroom concepts with industrial practice. Written for engineering students, educators, and professionals, this edition continues to be a trusted reference?combining clarity, rigor, and practical insight to prepare readers for the evolving world of CAD/CAM.