The ninth annual international workshop Engineering Societies in the Agents' World was hosted by the Ecole Nationale Superieure des Mines de Saint-Etienne (ENSM-SE), France, in September 2008. The workshop was organized as a stand-alone event, r- ning over three days. ESAW 2008 built upon the success of prior ESAW workshops: ESAW 2007 held in Athens, ESAW 2006 held in Dublin, and ESAW 2005 held in Kus, adasi, going back to ?rst edition of the workshop which was held in Berlin in 2000. ESAW 2007 was attended by 60 participants from 12 different countries. Each pres- tation was followed by...

The 10th international workshop "Engineering Societies in the Agents' World" (ESAW 2009), was held in Utrecht, The Netherlands, during November 18-20, 2009. In the tradition of its predecessors, ESAW 2009 was committed to the idea of multi-agent systems (MAS) as highly interconnected societies of agents, paying particular attention to the social aspects, methodologies and software infrastructures that tackle the emergent complexities of MAS. The idea for the ESAW workshop series was born 10 years ago, in 1999, among the members of the working group on "Communication, Coordination and...