Instruct: Classify a review as either positive or negative.
Query: Lost my book

My son and I read this book a few years ago and he lost about 6 pounds. Then the doctor told me that it was not appropriate for someone who had not hit puberty yet, so I took him off the plan. Now he has hit puberty and I cannot find the book. Is anyone done with their book and would like to donate it? I remember the eating plans and recipes were wonderful. Thank you.