The nationalization of the postal service in Italy transformed post-unification letter writing as a cultural medium. Both a harbinger of progress and an expanded, more efficient means of circulating information, the national postal service served as a bridge between the private world of personal communication and the public arena of information exchange and production of public opinion. As a growing number of people read and wrote letters, they became part of a larger community that regarded the letter not only as an important channel in the process of information exchange, but also as a...