Instruct: Classify a review into positive or negative sentiment.
Query: Way too many mistakes

The concept of the book is good. The content is comprehensive, and Popov does seem to have made an effort to write the book for students. However, the book has just too many errors and typos! A page reference is missing from the Table of Contents, for example. The chapter entitled "Yield and Fructure Criteria," misspelling "Fracture" as "Fructure" in big letters, really annoyed me. This book would be near perfect if not for all the errors. I bought the book as a reference but returned it a week later after coming across the mistakes. The book is just edited very, very sloppily. A third edition with these mistakes remedied would be great, but Popov is old and I don't see him doing a 3rd edition. That's a pity.