Beginning AutoCAD® 2020, Exercise Workbook is designed for classroom instruction or self-study. It is suitable for both inch and metric users. There are 30 lessons. Each lesson starts with step-by-step instructions followed by exercises designed for practicing the commands you learned within that lesson. You may find the order of instruction in this Workbook somewhat different from most textbooks. The approach we take is to familiarize you with the drawing commands first. After you are comfortable with the drawing commands, you will be taught to create your own setup drawings. This method is accomplished by supplying you with preset drawings, “inch-helper.dwg” and “metric-helper.dwg.” These drawings are ready for you to open and use. For the first eight lessons you do not need to worry about settings, you just draw.