Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Badly needs updating & poorly executed

This book is old (1991) and does not cover the importantfacet of sector rotation or how to intrepret this book into a meaningful stock play. Murphy in this book does not even hint at it, thus allot of this information is not truly useful. The concept is superb but the execution quite flawed.Instead get the other Murphy book:Technical Analysis of the Financial Markets: A Comprehensive Guide to Trading Methods and Applications OR Martin Pring's new edition to his updated Complete Technical Analysis. Even Murphy's chapter in New Thinking in Technical Analysis: Trading Models from the Masterswas better than this book, despite its short 25 page conciseness.Funnily his video on this topic DOES update the book and cover Sector Rotation so Murphy obviously is aware of the oversight.This book is boring with no payoff. There is too much repitition with no real payoff (sector rotation); if you are truly interested in this important field of study look elsewhere.