IMPRS-ESM courses offer advanced academic training in the Earth system sciences. Courses focus on topics central to the four components of the Earth system and on tools used in Earth system modelling. In highly specialised courses senior scientists teach topics of their personal scientific expertise. IMPRS-ESM also offers training on generic academic skills and on scientific writing. Advanced scientific writing, for example, is taught jointly by a senior scientist and a professional writer who specialise in the communication of scientific knowledge.