I agree. CoosBayLumber hit on what I was going to say...just take a CAD class. You obviously need some sort of drafting background or you could be lost. But advanced ACAD is within reach to most anyone with some drafting knowledge. I dont necessarily agree that what they teach in these classes is too basic. Depending on the instructor, he may blow right past the "basic" stuff( in advanced CAD) and teach real world information. That is what I got. Maybe mine was an exception but plotting, xref, blocks, slide shows, and extensive 3D commands (and faults) were all taught indepth. Just my take on it.