Susan O'Neal Stryker is an American professor, author, filmmaker, and theorist whose work focuses on gender and human sexuality. She is an associate professor of Gender and Women's Studies at the University of Arizona, and is the director of the university's Institute for LGBT Studies. She has served as a visiting professor at Harvard University, University of California, Santa Cruz, and Simon Fraser University. She is an openly lesbian trans woman who has produced a significant body of work about transgenderism and queer culture. (from Wikipedia)