Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Very Helpful Book

Although my 23 month old daughter did not potty train in less than a day, I can say the book was very useful. My daughter had a stubborness problem that had to be overcome before I could use the books's techniques properly. However, instead of costantly butting heads over her stubborness, I improvised. I used a few of the books techniques that my daughter was willing to do and used them over and over. After just a few weeks she supprised me by coming and telling me she had used the potty all by herself and so far she has used it for the past three days in a row. I would recommend using this book as a guide even if your child does not completely pass the readiness tests that are in this book. It has some of the best strategies for potty training I have heard so far.