Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The authors don't contribute any kind of insight.

It's just a book of factoids on nanotechnology. If the book does anything at all it leaves you full of questions. Which I would imagine the one author hopes will lead you to his consultancy (Nano Veritas Group). Which is carefully placed at top of the "Resources" section and gives the following description: "A comprehensive nanotechnology website dedicated to providing the general business reader with relevant nanotechnology news." ... Check out the website to see how "comprehensive" it is and that will give you an idea about the book. :)