Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Some Solid Truths; Bad Writing

This author correctly assembles proofs that the stock market has times of enthusiasm and times of discouragement. All investors should surely know that. The proofs dispose of the idea that "Buy and Hold" will always make you rich. Unfortunately, though, some of the over-elaborate graphics are no help at all, and the author' style is both condescending and irritating.