Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Mediocre introduction with a lot of mistakes in arguments...

If you have a choice between this and Pojman, get Pojman. I don't particularly like either of them, but Pojmans "Ethics" is definately the better one.BAD: The chapter on subjectivism is completely confused - this book has no proper introduction to meta-ethics nor is its place in general ethics explained. The chapter on relativism is ok, but I would say that there are serious mistakes there too. The chapters about utilitarianism are just too simplistic and exclusive.GOOD: The chapterson the social contract and the chapter on Kant are both good, as is the chapter on feminist ethics. It is good to see that stuff usually left out (social contract, feminist ethics) is included here.Overall you should get something else for a good introduction to the subject and if you already have some knowledge of the field, this book will be of no interest whatsoever.