Instruct: Classify Amazon reviews into positive or negative sentiment
Query: If at first you don't succeed, write a book!

This book offers no practical information for investing in today's markets. Using this so-called approach will send you to the poor house in a hurry in a bear market like the one we're having currently(July-Oct.'98). You might get lucky during a wild bull phase but if you don't identify when market conditions are changing you're going to be toast as one of the reviewers below me found out. Maybe Mr. Warren found this out the hard way and tried to make up for some of his losses by writing a "how to" book.