@rylancole Glad to hear it! I think I originally picked it up for it's examination of the concept of race, but its focus is more specifically on the historical relationship between concepts of intelligence and race, so it has interesting things to say on both topics.

The most salient takeaway for me was that it seemed these historical figures had set out to try to honestly measure intelligence through ostensibly objective means but their preconceived prejudices blinded them to the flaws in their methods, resulting in racism being baked in to what they produced. As a result, I think it's book that every scientist should read.