Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Bad book and a rip-off.

The soltution manual explains the solutions well, but the text does not even do a sufficient job presenting the material to reasonably expect that the students will be amply prepaired to solve the problems--though many still will be able to, due to the simplicity of many of the problems and the general reasoning of engineering students.Plus, these guys are crooks; they release a new edition every year or so. Why? Only to change the cover, the problem numbers (but the same problems and same solutions)... oh yeah, so they can sell more books and charge more for it!