Read more at Blazing Cat Fur:
The book mentioned in the video is this one:
Walt Heyer became fascinated with people who change genders in 1980 while working in San Francisco. Walt has walked and talked with transgenders and seen the unintended consequences of changing genders. In the 25 years since his psychology studies in drug and alcohol dependence at U.C. Santa Cruz, Walt has worked with people who have a strong desire to put the pieces of their lives back together.