Instruct: Classify the given review into positive or negative sentiment.
Query: Another worthless book!

Another ECG book with terrible illustrations of ECG rhythms that are hard to read. They are in black & white and fuzzy! This book is also over-priced! This is also another ECG book that is witten like a childrens book! The only good part of this book is that it has flash-cards on ECG rhthyms and cardiology meds. Please don't waste your money!