Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Some thought-provoking ideas but not enough practical detail

This book from Mr.Jenkins contains some interesting ideas mainly suited with WD Gann students.Some parts of the book are truly interesting, but you will very often feel frustrated since the author does not go into details, mainly since "he can't share his discoveries".According to the author, the reader should start from the clues he leaves here and there in the book to develop his own analyses. Though if this position about the need of self study is fully acceptable, at least in my experience, the clues left were not enough to develop through my study specific trading strategies and techniques.