Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Avoid so-called guide from a non-trader

Those who know how to trade, trade.Those who know how to write, write.With a few exceptions, those who don't know how to trade, write.There are thousands books about technical analysis or trading in general. This is one I would avoid.The author obviously had not done enough research on the successful traders he wrote about in the book.Take, Stanley Kroll, which had been a great success (he passed away in 1999) and had written a few insightful books you can find at Amazon. The author stated that he did not used moving averages. But in Kroll's book, he used moving averages extensively for trend trading and keep it simple.