Stavroula Christaki is sociologist, graduate of the Panteion University of Athens, Greece. Since 2013, she has been working at the Hellenic Academic Libraries Link (HEAL-Link), supporting open access projects and initiatives, such as the “Kallipos” open academic textbooks project. Within “Kallipos”, she was responsible for the helpdesk service of the project, as well as for the submission and uploading procedure of the books, according to the repository specifications. She has also worked as a research associate in NSRF co-funded projects at the National Technical University of Athens and as a vocational guidance counselor for adults. Furthermore, she has worked in counseling and social support structures for vulnerable social groups.