Geometric Dimensioning and Tolerancing (GD&T) is a system of symbols and conventions used in engineering and manufacturing to describe a part's allowable variation in form, size, and orientation. Coursera's GD&T catalogue teaches you the principles and applications of this critical technical language. You'll learn how to interpret and apply GD&T symbols, understand the rules and standards of the American Society of Mechanical Engineers (ASME), and create and read engineering drawings to communicate design intent and ensure functional product assembly. You will also gain insights into tolerance analysis techniques, dimensional inspections, and quality control, essential for roles in mechanical engineering, manufacturing, and product design.