When I got this book I thought WOW this is huge! It is heavy, it has 760 pages and covers everything from A to Z about AutoCAD. It definitely is an All-In-One Reference on this unbelievable software program. And, there are 10 books in this book. There are chapters that explain AutoCAD Basics, 2D Drafting, Annotating Drawings, LT (Light) Differences, 3D Modeling, Advanced Drafting, Publishing Your Drawings, Collaboration (sharing with others and building on the original within groups), How You Can Customize AutoCAD For You, and more.Of course, they have the Icons throughout the book as they have in all their publications that make it easier to find what you need by scanning down the margins.What I really like, since I interface with others that don't have AutoCAD, is being able to work within the DWF files and send to my friends with Adobe Illustrator that can use these drawings in their computers. (WIsh they had a MacIntosh version of this program but that is asking for the moon, I guess. I use this with Parallels so it works on my Mac just fine. I find more and more cities are moving to Macs so this might change given time.All-In-All it is a wonderfully clear reference to just about anything I need to know about AutoCAD.