The course deals with the study of the fundamental legal principles and categories that revolve around the phenomenon of the digitization of society, the development of Artificial Intelligence, Big Data, Digital Coins and Crypto-assets, Blockchain and Smart Contracts. This with a particular regard to the (Italian, European, International) sources of law, to the technological innovation, to the organization of relations on the Internet and in online-markets. Lessons will focus on the main legal problems of the digitalization through the basic categories of the fundamental rights, subjects and juridical situations, objects, autonomy of parties, specific contracts and liability.