This volume brings together the peer-reviewed contributions of the participants at the COST 2102 and euCognition International Training School on "Multimodal Signals: C- nitive and Algorithmic Issues" held in Vietri sul Mare, Salerno, Italy, April 22 -26, 2008. The school was sponsored by COST (European Cooperation in the Field of Scientific and Technical Research, www.cost.esf.org) in the domain of Information and Communi- tion Technologies (ICT) for disseminating the advances of the research activities developed within Action 2102: "Cross-Modal Analysis of Verbal and Nonverbal...