The book "Methods and Tools for Co-operative and Integrated Design" offers a comprehensive analysis and methodology for optimizing product design and production processes. It is aimed at professionals and students who are engaged with the integration of CAD technologies, numerical models, and new manufacturing methods. The authors, Serge Tichkiewitch and Daniel Brissaud, highlight the challenges and solutions arising from the need to reduce time and costs in industrial manufacturing. By introducing a structured methodology and utilizing feedback from practice, a foundation is established to enhance efficiency and quality in product development. The book is a valuable resource for anyone working at the intersection of design and manufacturing and seeking innovative approaches to process optimization.