Heath Fogg Davis is a scholar-activist, Associate Professor of Political Science at Temple University, a trans man, an author. His book– Beyond Trans: Does Gender Matter provides important insights and perspectives on gender in society, and he examines four areas where we need to re-think our sex-classification systems. Those are sex-marked identity documents such as birth certificates, driver’s licenses and passports; sex-segregated public restrooms; single-sex colleges; and sex-segregated sports. www.heathfoggdavis.com