In this ground-breaking study, Aaron Devor provides a compassionate, intimate, and incisive look at the life experiences of forty-five trans men. Emerging into 21st-century political and social conversations, questions persist. Who are they? How do they come to know themselves as men? What do they do about it? How do their families respond? Who are their lovers? What does it mean for everyone else? To answer these and other questions, Devor spent years compiling in-depth interviews and researching the lives of transsexual and transgender people. Here, he traces the everyday and significant events that coalesce into trans identities, culminating in gender and sex transformations. Using trans men's own words as illustrations, Devor looks at how childhood, adolescence, and adult experiences with family members, peers, and lovers work to shape and clarify their images of themselves as men. With a new introduction, Devor positions the volume in twenty-first century debates of identity politics and community-building and provides a window into his own self-exploration as a result of his research.