Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good Training Materal

I wase looking for a book that would be a good instructional guide for a student ultralight pilot and this is one of the best on the market. Doug has laid out the lessons in order and the only thing I question is formation flight. That is a lesson for byond the intro student pilot. I think navigation should be referenced more and updated.I would suggest for a person going to instruct a ultralight pilot.