Working Group 4 will coordinate the training program and ensure close collaboration with international research schools such as the International Max Planck Research School on Population, Health and Data Science (IMPRS-PHDS) and the European Graduate School for Training in Economic and Social Historical Research (ESTER). Its main aim is to safeguard that YRIs, from ‘Inclusiveness Target Countries (ITCs)’ in particular, are included in all training activities, and to organize  a great variety of training events, ranging from STMTs to MOOCs. The emphasis of most of these activities is on exchanging knowledge and best practices regarding how to study inequalities in health using historical and contemporary individual cause of death information, while at the same time teaching the basic building blocks needed from disciplines such as history, demography and epidemiology. The goal is to turn many of the developed training materials into self-study manuals/courses that will be made available open access to the public to guarantee that also scholars without funding can learn how to use the coding and classification system.