Cosmology is a rapidly growing field.
Current research is very active on the nature and amount of dark matter, the description and origin of large scale structure as well as the physics of the very early universe. The next ten years is likely to be a very exciting period for Cosmology with numerous new observational results expected from large telescopes, dedicated instruments and space experiments. The purpose of this school is to review the various aspects of this domain. The courses are aimed primarily towards graduate or post-graduate students but also towards more advanced students and young postdoctoral researchers, willing to deepen their knowledge or to start in a new field. This allows a thorough pedagogical approach and favours exchanges and discussions between participants.