Between 1969 and 2010, the remote former mining town of Trinidad, Colorado gained prominence for an unlikely reason: it was where approximately six thousand people came to seek reprieve from gender dysphoria by receiving gender confirmation surgery. Surgeons Stanley Biber and Marci Bowers performed so many of these operations that the New York Times indelicately labeled the town "the sex-change capital of the world." In this book, author Martin J. Smith explores this overlooked chapter in medical and transgender history, telling the story of Biber and Bowers as well as two of their patients. For those interested in learning more about this medical history or about gender confirmation surgery, this book is an excellent place to start. In an era where trans folks face prejudice on many sides, Smith's writing helps bring to light and explain to the layman why these surgeries can help so many folks and why we should all seek to eliminate the discrimination faced by trans individuals everywhere.