First off, this is not a book to read if you want to know how Marx critiques capatalism. Sure that's touched on a little, but most of the book is devoted to pure economics, without any talk at all about how the economics comment on the way society, and capatalist firms function. The book is locked into numbers, and I'm guessing that it was meant to be used in a college course as a supplement. He says that his math is on the level of intermediate economics, and he's probably right, but don't expect him to do any explanation, he just plows on through, leaving those who aren't so lucky as to have taken up to intermediate economics courses left in the dust. No empirical analysis whatsoever, except for a calculation of the social surplus and the labor value of money. If your an economist you'll have a ball.