CIUTI institutes set examples of best practices and provide guidance for other and emerging T&I institutes all over the world. Within CIUTI’s overall concept of quality assurance, one key aspect is the quality of T&I trainers. To meet CIUTI standards, T&I trainers should embody the Leibniz principle “theoria cum praxi”, i.e. they should teach on a sound basis of theoretical knowledge combined with practical skills and experience. The “Train the Trainers Group” looks into possibilities of promoting this objective.