Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This book is really bad.

This book shamelessly regurgitates the ideas of others without documenting the sources with footnotes. Moreover, Bradshaw fundamentally misunderstands and misrepresents seminal ideas drawn from psychoanalytic theory, Gestalt therapy, Transactional analysis, and other schools of thought. The result is confusing and will lead many people down a false path in their attempts to address mental health problems.