Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Confusing with lots of typos

I bought this book at you do it electronics. I have an electronic mechanics background from when I was in the US air force. The book has what looks like a great organization, with 13 chapters, self tests on each chapter and a final exam at the end. The first chapter was pretty good but had a lot of either typos or printing mistakes that could have been prevented had the author proof read the pre production edition. The quiz at the end had a few mistakes in the answers but a proof read could have prevented them. The second chapter was very confusing with more typos. The sentence structure made it difficult to understand the concepts and the text constantly referred to diagrams or figures that were on other pages. The examples used to illustrate the concepts had mistakes in them which made them incomprehensible. The quiz at the end really frustrated me. I am so disappointed that I gave up trying to learn from this book.