This book is devoted to a subject which deserves growing attention from policy makers, financial operators and academics. It is the issue of unbanking or underbanking in developed countries. With respect to this, the goal of the authors has been that of highlighting both in a theoretic framework and through the study of the main experiences investigated on field, the need/the opportunity for banks, financial institutions, public authorities and non for profit associations to devote more efforts in understanding the problem of financial exclusion in order to offer to low-moderate-income people (LMI people) new opportunities of accessing financial services (banking, credit and investment services).