Cellular communities is one of our three focus themes, and in this meeting we plan to cover three broad areas of research relating to cellular communities: heterogeneity in genetically identical populations of cells, competition and cooperation in multispecies communities, mechanisms of information transfer between cells/organisms. We are aiming for a small, intimate meeting with short talks and lots of discussion time, where people would feel comfortable speaking about their latest ideas, even those still under development. There will be a good mix of people from theory, modeling and experimental backgrounds in this meeting, working with both eukaryotes and prokaryotes.