I applied through university. I interviewed at Scuola Normale Superiore (Pisa)
Interview
interviews at Scuola Normale are very hard. Selection process is severe, and a candidate must pass three sessions. There is an initial pre-screen of CVs, then you are called for a written examination, in qhich you should try to address a scientific problem that is stated in one or more articles that they give you. If the written exam is passed, then you face a 2-hour oral exam, in which they ask you all about your technical and theoretical knowedge
I applied online. I interviewed at Scuola Normale Superiore
Interview
Two step interview, in the first part the evaluation of Curriculum Vitae, cover letter, references and a phd project proposal.
Second part of the process more technical where they ask you question more focused or by a skype interview or an oral interview.