This paper aims to explore the theme of the perception and experience of peri-urban and marginal places through the autobiographies written by mafia inmates in the Catania Bicocca Prison. who have joined a project I started inside the prison in the context of ethnography of detention. In the first part of this work. the notion of a peri-urban place is presented. https://cosmeticssquadets.shop/product-category/tweezer/