"Confusion of Feelings" by Stefan Zweig (original title "Verwirrung der Gefühle"). He was probably the most popular and successful author in the world in the early 1900s, but his books got banned as the nazi-party rose, and he lost his star-status since (in English-speaking countries, at least... he's still big in Germany, Russia and Eastern Europe). He committed suicide in 1942 together with his wife because they despaired at the state of the world at the time. I haven't actually started on the book yet, but will do today. It's supposed to be the first novella to deal with homosexuality in a serious way, and was highly admired by people like Freud, Richard Strauss and Maxim Gorkij.