The AutoCAD 3D eBook was written as a tool to guide and teach you to master AutoCAD. No two students learn at the same pace, therefore the eBooks were written with competency-based modules. The competency-based modules are bite-size pieces that allows you to work at your own pace. They can be used to learn by distance education, correspondence, online, instructor-lead classes, or by individuals teaching themselves to use AutoCAD in their own home or office. This eBook was designed to be used on AutoCAD software that was designed for the Windows operating system. An editable, Pressbooks version of this textbook is under development.