This time, the Photobook Quartet discusses the book "Ren Hang" by the Chinese photographer of the same name, who took his own life in 2017 at the age of only 29. Although his career as a photographer lasted only six years, he was one of China's most controversial contemporary photographers. His trademarks included transgressing moral and social taboos and showing his friends mostly naked and in more or less sexualised postures and absurd, provocative stagings.