Politecnico di Milano provides a coordinated environment for PhD level training through its PhD School that coordinates 18 active PhD Programmes (http://www.dottorato.polimi.it/en/) and has adopted the European Principles for Innovative Doctoral Training. The PhD programmes at POLIMI generally last 3 years and each programme has an English track. There are currently 1000 DCs (30% international). PhD School offers a number of educational activities aimed at providing researchers and DCs with opportunities of multi-disciplinary and cross-cultural experiences.