This book is a very thorough presentation of learning theory. Yet, by referring to experiments and to dog training, the author makes a difficult subject very approachable. I had a number of "ah-ha!" moments and will re-read to get more out of it.
I was concerned about all the abbreviations I saw when browsing the book, but they are not used to such excess that you get lost/confused.
As I said, the book is thorough, so it does present the negative end of the scale -- aversives and punishment. I understand why the author had to include this information, but it is still difficult reading for those of us who consider our dogs our friends -- and who applies electric shock to their friend? I only wish she had placed the caveats of using these methods at the beginning, rather than at the end, of their respective sections.
If you are looking for more depth and science than found it dog training books or "Don't Shoot the Dog," in a book that won't bore you to tears, get a copy of Excel-erated Learning, well worth it's reasonable price.