Instruct: Classify Amazon reviews into positive or negative sentiment
Query: regretted buying it, regretted reading it

The book sounds promising: how the human species evolved to have the ability of doing math. But the book didn't deliver. First, I think the author assumed that his readers are idiots, because the book is full of trivial, elementary facts about math and human evolution. The chapter "what is this thing called mathematics" is particularly insulting. Second, the author may have some good points on how humans evolved to have math abilities, but these points would be very hard to find--I didn't find them, they are probably somewhere deep underneath all the irrelevant trivias. In general, the writing is incoherent and the choice of the materials is very poor.