I don't get it...

I was at the book store skimming through a sculpting in zbrush book. In one of the tutorials, author of the book wrote something to the effect of "from this step, export your model to 3D Studio Max to fix it up. Reimport it into zbrush after." What?! I thought this was a book on how to sculpt in zbrush! Glad I saw that and didnt buy the book. #ripoff