Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A well written,clear and concise,study .

Robert Sheard has done a marvelous job! His book is well written, clear, and consice. I have followed his work on the Motley Fool for awhile now. My results with the BTD5 strategy have been excellent. I am a 32 year veteran of the Market wars. If I had this book when I started, I'd have been retired years ago. Bravo Robert!!!