Instruct: Classify Amazon reviews into positive or negative sentiment
Query: solid helpful info

This book is capable of imparting a lot of wisdom. It is designed to lead you through a course in which you come to understand what's beneath sibling rivalry and learn techniques and attitudes that can help defuse it or prevent it from starting in the first place. It's solid information clearly presented and well worth reading by any parent who is concerned with the issue. I disagree with the critical reviewer who claimed the info was outdated--I find it very relevant and helpful.