Mission - Italian Quarterly Journal of Addiction - represents more than fifteen years of Italian health services’ experience, interpreting the vision of a complex concept of addiction (biological, individual and social) and its treatment. Always attentive to the epistemological assumptions underlying consumption and abuse phenomena, Mission provide new opportunities of knowledge, updating and discussion to the professionals in the field of Addiction, aiming to be a point of reference for scholars belonging to the related disciplines (Neuroscience, Psychology/Psychotherapy, Management, Social Sciences and Law, etc.). The purpose is to present solid and updated scientific evidence, with an eye to the possibility to transfer the implications on the field, considering daily criticalities but also looking forward to the changes in progress in the prevention, clinical area and research. The articles proposed for the section "Essays, studies and research" of the journal are evaluated through a system of double-blind peer review, according to which both referees and authors remain anonymous to ensure relevant and rigorous scientific publications.