"Harakiri" presents the notes and sketches made by Elias Petropoulos while he was incarcerated in Averoff prison in July 1969. Thirty years later, Petropoulos published an article based on this material, which detailed the practices of self-harm amongst prisoners and urban working class men, dubbed "harakiri" in Greek underworld slang. Translated into English for the first time, this article is accompanied by full-colour facsimiles of Petropoulos's sketches, which were sourced from his personal papers archived by the Gennadius Library at Athens.