This was in the Philosophy section, but it happens a lot that bookstore staff can't tell legitimate works from bullshit; Deepak Chopra ends up in the Science section, Neurobiology ends up in Psychology, creationists end up in Biology, and Mathematics ends up in Philosophy. Not this time, however: this one was clearly written for and by Philosophy majors, and as such any substance that it has can be summed up on half an A4. I suppose it might be of use to a middle-schooler, if his elementary school missed out on the New Math.