- Yasar University (Izmir), Department of International Relations (April 2019)
- Dogus University (Istanbul), Department of International Relations (March 2019)
- Shandong University, Qingdao Campus, School of Political Science and Public Administration (May-June 2018)
- University of Warsaw, Institute of International Relations (May 2016)
- Metropolitan University Prague (Czec Republic), International Relations Department (April 2015)
- Universitè de Grenoble (France), Institut d’Etudes Politiques (September 2014)
- University of Macau, Macau (SAR) China, Department of Government and Public Administration (June-July, 2014)
- Fu-Jen University, Taipei (Taiwan), Department of Italian Language (November, 2013)
- Universidade Tecnica de Lisboa, Instituto Superior de Ciencias Sociais e politicos (May, 2012)
- Jagellonian University in Krakow, Institute of American Studies and Polish Diaspora, Krakow (May 2011)
- Middle East Techincal University, Center of European Studies, Ankara (October 2009)
- Universidad Internacional Menendez Pelayo, Santander (Septembert 2008)
- European Institute of Romania, Bucharest (May and June 2005)
- Facultad de Ciencias Sociales, Universidad del Pais Vasco, Bilbao (February 2005; February 2000; June 1999)
- George Mason University, Center for Social Complexity, Faifax (USA) May 2004
- Departamiento Asuntos Internacionales, ITAM, Ciudad de Mexico, (March, 2004; February 2003, February 2002; February 2001)
- Universidad Complutense de Madrid, Facultad Ciencia Politica (March 2003; April 2005)
- Universidad Autonoma de Barcelona, Facultad Ciencia Politica y Sociologia (November 2002; February, 1991).
- Columbia University, New York (Adjunct Professor, School of International and Public Affairs), Fall Semester 2001
- New York University, Center for European Studies (New York Consortium of European Studies Professor), Fall Semester 2001
- International School of Social Sciences, University of Tampere (April 2001)
- Master in Human Rights and Democracy, Meda-Democracy, University of Malta (October 2000)
- Ural State University, Ekaterinburg (July, 2000)
- Area Studies Centre for Europe, University of Karachi (January 2000)
- Chinese Academy of Social Sciences, Beijing (October 1999)
- University of Stettin (May, 1996; June, 1998; May 2000)
- Universitat Osnabruck (February, 1996)
- Universitè de Liège (February, 1993)
- University for Peace, San Josè de Costa Rica (September 1991).
- Centro de Estudios Constitucionales de Madrid y Universidad Complutense de Madrid (November 1990).