"Alice Sullivan's book is rational, unbiased and empathetic. It is a gripping, essential work that does not shy away from clear descriptions of some horrific consequences of the failures to accurately account for sex in data collection and public policy."Carole Hooven, Associate, Department of Psychology, Harvard University and author of Testosterone"Alice Sullivan's splendid book is a body blow to the trans cult and its gullible enablers in politics, the media, and the medical and teaching professions. An especially valuable section traces the philosophical roots of the cult in the pretentious obscurantism of postmodernism. A terrific book, strongly recommended."Professor Richard Dawkins, FRS"'Everyone has a right to their own opinion, but not to their own facts.' Alice Sullivan shows how this truism has been under assault by a coalition of ideologues and cowards who have corrupted the simple recording of data, leaving institutions ignorant or deluded. This book is a compelling call for honesty and accuracy in understanding the most basic difference between us, male and female."Steven Pinker, Johnstone Family Professor of Psychology, Harvard University, and author of Enlightenment Now"This is a truly frightening book. It describes a universe of Orwellian groupthink and oppressive, health-damaging ideological control that operates at all levels of power, including government, the civil service, policing and criminal justice, the media and academia. The problem is that this Orwellian universe is the one we actually live in now.Alice Sullivan documents with ruthless and persuasive attention to the evidence how we have got into such a mess about sex and gender and why it matters. The level of confusion she documents, especially among policymakers and academics, is almost unbelievable and certainly extraordinary. It amounts to what she calls a systemic failure of 'institutional governance and truth-seeking norms': an anti-democratic rejection of science and the silencing of dissident voices. Sex, Lies and Statistics should be compulsory reading for everyone involved in shaping public policy."Ann Oakley, Professor of Sociology and Social Policy, UCL