After long preparation, here is the first issue of the internationally reviewed ST-OPEN journal. ST-OPEN is published by the University of Split as a new type of overlay journal based on the University’s repositories. ST-OPEN has a broad, multidisciplinary scope, with the aim to promote interdisciplinary collaboration across university schools and departments. ST-OPEN focuses on graduate student research and selects best student-supervisor research work for publication. ST-OPEN is opened to students and teachers who deposit their research in university repositories at the University of Split, as well as to students and teachers from all other universities in Croatia and globally.