Instruct: Classify an Amazon review as either positive or negative.
Query: it's a good book to study for OCP

I have just passed IZO-023 (second of the five-series) and this book is the only source for my study. I agree that there are some minor mistakes but in general, it is a good book and the author suggests several review sections at the end of each chapter enabling you to cover the whole part in a couple of pages. In summary, combined with some computer practice, this book should suffice for your OCP track.