Racist pseudoscience may be on the rise, but science is no ally to racists. Instead science and history can be powerful allies against bigotry, granting us the clearest view of how people actually are, rather than how we judge them to be. HOW TO ARGUE WITH A RACIST dismantles outdated notions of race by illuminating what modern genetics can and can’t tell us about human difference. It is a vital manifesto for a twenty-first century understanding of human evolution and variation, and a timely weapon against the misuse of science to justify racism.