On the requirements of good communication in the book by Kamila Miłkowska-Samul (S)cortesia e social network. Opportunità e rischi del dibattito pubblico su Facebook The article aims to discuss the latest book by Kamila Miłkowska-Samul, entitled (S)cortesia e social network. Opportunità e rischi del dibattito pubblico su Facebook, published in 2019. It is the second time that the author takes up the subject of the language of Italian politics, this time in a pragmalinguistic and communicative perspective. The interpretation key to which the analysis of numerous examples of politicians’ statements on Facebook was subordinated is the theory of politeness (or impoliteness). The reader will also find an in-depth study of individual theoretical component issues: concerning the language of the Internet, politics, and the already mentioned theory of politeness and related sociopragmalinguistic issues.