Introduction to Drafting and AutoCAD 2D was written as a tool to guide and teach you to master AutoCAD. No two students learn at the same pace, therefore the eook was written with competency-based modules. The competency-based modules are bite-size pieces that allow 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.