“In Sex Isn’t Real, Beans Velocci zeroes in on a central problem in the history of transness to reveal it as a central problem of the historical enterprise itself: how the very categories through which we think about the past and construct its objects are themselves historical constructs that ontologize historically contingent gender categories by biologizing them as sex. A powerful contribution to history, science studies, and trans studies.”—Susan Stryker, founding coeditor emerita, TSQ: Transgender Studies Quarterly