Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not especially helpful

I am an aerospace engineer and used this book during school. I had a very poor professor. Generally if I have trouble learning from a professor the book will get me through it. Unfortuanately this book was very hard to follow and had very few helpful example problems. I ended up dropping the class before it would affect my GPA. I then retook the class over the summer at a local community college, which actually had a much better book that covered all of the same material. I got an A, so it was't just he subject material.