Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Complete Trash

Perhaps the worst book about plants I have ever run across, this ridiculous piece of pseudo-science spouts half-truths, speculation, and 60's phony-spiritual mysticism and calls it "science." It has led to some of the worst science-fair projects I have ever seen, and it has no doubt helped confuse thousands of middle- and high-school children. Spend your money on something else.