Electronic communications represent a wide range of different services. Telephone, broadband internet, IPTV and mobile services are only a part of the cumulative concept of electronic communications. Because of its importance for the functioning of modern societies, they represent a large part of the GDP of all countries, including the member states of the European Union. The European Union has relatively early recognized the importance and potential of electronic communications, as well as the importance of liberalizing the provision of these services in the common market. Because creating a common market for electronic communications services is no easy task (even today, after more than 30 years of attempts, the market is still not fully liberalized), the European Union has approached this task by adopting a series of regulations and directives arranged in several regulatory frameworks. It also established several quasi regulatory bodies tasked with (in cooperation with national regulators) the implementation of these regulatory frameworks in all Member States. The aim of the course is to introduce students to the basic concepts of regulating electronic communications, the electronic communications common market of the European Union, as well as national and European bodies entrusted with this task.