Personally, I would like to see the authors sales before and after appearing on Scribd. Personally, I often search for reviews and/or excerpt from books before I actually go out and purchase them, much like I do with music and albums. Scribd has been an awesome resource for this practice. Otherwise, I would probably not purchase anything without reviewing bits of it beforehand. IMO, she may also profit from this exposure. Again, this could not be determined until we see before/after sales. (if she had any at all seeing the age and nature of the book, its likely to be outdated.)