Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A very average book

I bought this book for a class at a university. It was an easy read and easy to understand, but not overly interesting. It is a typical sociology book. Most people who buy this book will be students required to purchase it for class. However, if you are the rare person considering this book as an addition to your library, I suggest rethinking your decision. I suspect that the people who find this subject matter interesting already know everything in the book. It is written on a very basic level.If you are looking for a book to improve your marriage, look elsewhere. This book offers theoretical ways to have a successful relationship, but like too many sociology books it has little practical relevance. For example, this book teaches that a successful relationship will have optimal balances of cohesion, flexibility and communication. While that principal is probably correct the application is vague.