Instruct: Classify Amazon reviews into positive or negative sentiment
Query: terrible book

I am not an expert on teaching languages but I have had ten years of language courses in high school and college, from latin to russian to french etc. I am American and my wife is Norwegian. This book is full of mistakes and anachronisms. If it was edited at all the publisher should fire the editors. The grammatical explanations are needlessly pedantic. Don't buy this book!