This is a PDF of a critique of the book, "Intelligence and How to Get It" by Richard Nisbett. The critique itself is by Phillip Rushton and Arthur Jensen. 

In the book, Nisbett argues that intelligence largely a byproduct of environmental factors, while this critique argues that genetics plays a larger role.

This is a must read for anyone interested in the nature/nurture debate over IQ and intelligence. The book critiqued can also be found on The Pirate bay.