Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great guide

I liked the fact that this book's many plant groupings ('Dry shade', 'Fragrant flowers', etc) included color photos of each recommended plant. That way, if you are planning a whole area, you can picture how different plants would look together. Plus, they identify stand-outs in each category. There are many codes for the sun, soil type, etc for each plant.