First round is a phone call that asks very basic background questions, just screening. Second is face to face, gets into your background and experiences a bit. Third is a case study. You have a few minutes to source two "experts" with the given criteria and then explain why you chose them. There is then a mock phone call.

Very straight forward and easy to continue throughout. I had three interviews and every time I had someone else that had a different point of view and wanted to learn something new about me.