Duane de Four is an educator, media critic, and activist working to prevent sexual assault, dating violence, and promote comprehensive sexual health education. In twenty years as an educator he has conducted presentations for students at colleges and universities across the country, professional athletes, and service men and women in the U.S. military. He also works at MIT and in his spare time blogs about masculinity in media and culture at his blog HowManly.com. You can learn more about his work at duanedefour.com.