Bachelor's degree in History and Philosophy from the Faculty of Humanities and Bachelor's degree in Law from the Faculty of Law, both from University of Iceland. Master's degree from Duke University School of Law, United States. PhD in International Law from University of Strasbourg, France.
Professor at University of Akureyri, Iceland, and at the Faculty of Law of University of Iceland. Visiting Professor at University of Florence, Italy, and Professor at the Faculty of Law of University of Copenhagen, Denmark.
President of The EFTA Court in Geneva and Luxembourg between 1993-1996 and 1999-2003. Judge of the European Court of Human Rights, in Strasbourg, from 2003 to 2013. Ad hoc Judge of the Supreme Court of Iceland in 2017.