The conference on Computer Simulation of Radiation Effects in Solids (COSIRES) is an international scientific conference for presenting and discussing recent achievements in the advanced computer modelling of surface and bulk phenomena stimulated by all forms of energetic particle (ion, neutron, electron, ...) irradiation . Fundamental understanding of these phenomena is often not accessible by experiments, since they occur on very small time and length scales. A vigorous development of both computer hardware and theoretical methodologies which has occurred in recent years has pushed the field into the forefront of a modern science.