We invite submission of contributed papers on any of the broad themes of the LORI series; specific topics of interestinclude, but are not limited to, formal approaches to agency argumentation and agreement belief representation cooperation belief revision and belief merging strategic reasoning games decision making and planning knowledge and action epistemology dynamics of informational attitudes knowledge representation interaction norms and normative systems natural language rationality philosophy and philosophical logic preference and utility social choice probability and uncertainty social interaction intentions, plans, and goals