"Circolo Vizioso" is the result of research on diversity. The book is presented as a socio-scientific research around the theme of the figure of drug addicts. In the first part of the book there are graphs concerning the European situation and then in particular Italy with regard to the diffusion of drugs. In the second part there are testimonies of drug addicts and former drug addicts. We thank the community of San Patrignano and Don Gino Rigoldi for their collaboration.
