Alison Li. Wondrous Transformations: A Maverick Physician, the Science of Hormones, and the Birth of the Transgender Revolution. University of North Carolina Press, 2023. There are four biographies of Magnus Hirschfeld (by Charlotte Wolff, Ralf Dose, Elena Mancini and Heike Bauer), an autobiography and three biographies of Havelock Ellis (by Phyllis Grosskurth, Chris Nottingham, Arthur Calder-Mars