This introductory chapter first sets out the book's main argument, namely that when we see sex, some parts of the body are noticed, and others are ignored. In fact, the proportion that is relevant for sex attribution is probably smaller than the proportion that is disregarded. This is especially evident when we consider that dominant conceptions of sex are based only, or mostly, on visual data. The chapter also details the study's methodology, interviewing two groups—blind people and transgender people—representing extreme cases in relation to the visual perception of male and female bodies. The aim is to challenge the visual self-evidence of sex differences. An overview of the subsequent chapters is also presented.
Keywords: social construction, sex attribution, gender, visual perception, male bodies, female bodies, blind people, transgender people