Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't waste your time

Prof. Baron Joseph A. Uphoff Director, son of God, whatever, I don't know who this guy is, but he shouldn't be writing books. He can come up with titles of books, but he shouldn't flex his literary talent beyond that.I was embarrassed to read this book, the author should definitely be embarrassed to have published it, there is a spelling mistake on the first page and all photographs (the few that are there) are 5th generation photocopies. There is no lineage of any katas beyond the person who taught the author and the "journey through time" refers to the author's learning of kusanku, not the kata's journey.Believe me Mr. Uphoff, there are better ways to self publish.