This book constitutes the thoroughly refereed post-conference proceedings of the 11th
International Workshops on Coordination Organizations Institutions and Norms in Agent Systems
COIN 2015. The workshops were co-located with AAMAS 2015 held in Istanbul Turkey in May 2015
and with IJCAI 2015 held in Buenos Aires Argentina in July 2015. The 23 full papers were
carefully reviewed and selected from 46 initial submissions for inclusion in this volume. The
papers cover a wide range of topics from work on formal aspects of normative and team based
systems to software engineering with organizational concepts to applications of COIN based
systems and to philosophical issues surrounding socio-technical systems. They highlight not
only the richness of existing work in the field but also point out the challenges and exciting
research that remains to be done in the area.
