For hundreds of years, perhaps thousands, human beings have tried to establish their differences with the ‘others’ in order to establish who is superior and who is inferior and, if possible, kill the ‘inferior’, enslave them or, at the very least, lord it over them. This fascinating and erudite account focuses particularly on the ways science has been used (and misused) to establish racial differences even though such differences are overwhelmingly culturally constructed. With unflappable zeal we are offered an amazing and well-informed account of the evolution of scientific racism in the 19th and 20th centuries. There is much to learn from this tour de force.