You can get all the books you want on AutoCAD, but only when you use the program will you find the quirks. If you would like a good self-paced tutorial book, go to AMAZON.com and read the reviews of some of the books. I can recommend David Frey's book, "AutoCAD 2006, No Experience Required" as a good book, both for reference and learning. Ellen Finklestein's "AutoCAD Bible" is okay, but you really need to know the terminology to find something in the book. Another fellow in our office swears by still another book, whose author I don't remember. I learned AutoCAD R12 and hadn't used it in about four years before I came here. One of the reasons they jumped at hiring me was that I had used AutoCAD in the past, and none of the other engineers here use the program. As you can imagine, it has taken me a little while to get back up to speed with the program, and learn all the new features that are included since R12. Then there are the add-on programs that provide additional capabilities for whatever your company does. I would never have been able to do so without the help of all the techs and CAD draftsmen here, and just plain having to use the program and encounter the challenges. So keep working with the program and you, too, shall conquer it.
Cheers,
ElectronHead