Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not for the faint-hearted

Although the author comes over as arrogant, I am, after several years, warming to this book. With concentration and very careful reading I have found that much can be gained from it. It is humorous, witty and iconoclastic. Reading a page here and a paragraph there, I have learned what Mordell's theorem is, almost understood a single paragraph proof of the prime number theorem, and more maths besides.It is however heavy going and the lectures and notes are in a concentrated form. The cover says the book assumes only one year of university maths. I really doubt this is enough math for this book. So beware.