Efi Tziva is an Assistant Professor of the Department of Economic and Commercial Law at the Faculty of Law, at the Aristotle University of Thessaloniki. She received her bachelor’s degree from the Law School of the above mentioned Faculty, in 1981, with the best degree (9/10). She also holds a LLM in Private Law as well as a PhD in Commercial Law of the same Law School, both with the best degree (10). From 1982 she belongs to the scientific staff of the Department of Commercial and Economics of the Faculty of Law of the Aristotle University, where she teaches during the law studies Insurance Law, Competition Law and Consumer Protection, Company Law, (compulsory course), Law of Cooperatives, European Commercial Law, and Banking Law to the post - graduate students. Her publications are three books (monographs), with the respective titles: -"The rights in a cooperative society", (1997), and in second edition in 2009. - "E-commerce of drugs",(ed. 2007). -“Medical Malpractice Insurance, The extent of insurance coverage, “Occurrence” and “claims made” policy form.” (ed.2014). - More than 20 published articles in Greek and English concerned Insurance Law, Company Law, Competition Law, Protection of Consumers rights, and in general Greek and European Commercial Law such as: “One man limited society”, “The registered office of the European Cooperative Society”, “ The right to commission of the insurance intermentaries”, “Drugs and internet”, “Insurance contracts online and consumer protection under the European and Greek Law”, “The protection of the insured in the e-health sector”, etc. She also has participated as a speaker in many educational and professional seminars and congresses in Greece and in other European countries. She is a member of the Hellenic Insurance Law Association, and as an Attorney at Law she handled many cases of international trade affairs in front of the competent judicial and extrajudicial authorities. She is a proficient user of English, German, and Italian. She carried out also researches in specific fields of Commercial Law at many Universities and Institutes, such as: “Die Freie Universität Berlin, Fachbereich Rechtswissenschaft”, “Der deutscher Verein für Versicherungswissenschaft”, “Marburg Universität”, “ Institut für Genossenschaftswesen Münster Universität”.