I was expecting a book on ethics, something that argued for a certain point of view. I was pleasantly surprised to find it was a book on psychology, about how people in general view or moralise their own ethical stance on animals. The book didn't come to many answers, which may frustrate people, but a lot of the science so far doesn't have clear answers, and I enjoyed the inclusion of the author's own stance on certain issues, even though he admits some of them are just as illogical as the ones he examines.