Title: Not much useful information
Product review: This was a required textbook for a class. The author is very wordy, does not explain well, but enjoys telling "stories." The graphs he uses do not match what he is talking about. At times it was a mystery what he was plotting on the graphs or demonstrating in his charts. This is not even good for a reference book. It has already been thrown out for the textbook requirements for my course. A waste of money.
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