Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Most useful Massachusetts guide since the WPA

The Massachusetts Handbook is a wonderful guide to the Bay State. I used it to plan a weekend trip to New Bedford for the annual Moby Dick Marathon and found it massively helpful, especially with restaurant recommendations. It's packed with historical and cultural information and is highly readable. If you're planning a trip to Masschusetts, you need this book.