Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Enlightenment!

Considering the current mood in this country, it is about time a contemporary author tackled this subject. Having read all four of Ms. Coontz titles, I was not suprised that she thoroughly researched her subject, and then wrote an evenhanded, enlightening, and informative book. Recommended to anyone who wants to gain understanding of marriage that is deeper than the myths we all learned from the 1950s to the present.