This monographic issue includes several papers related to some questions of Private Law, which are addressed, mainly, from the perspective of European Law but also of Comparative Law. The subjects are diverse and, apparently, without connection, since some address issues related to the new social reality in which we live, related to the information society and unfair business practices; and others deal with traditional institutions of Civil Law, such as prescription, which is subject to review. All of them, however, have a common feature, which is the dogmatic and practical interest of the matters dealt with, and their contribution to the unification, understood in a broad sense, of European Private Law. Published online: 31 October 2019