Yesterday, the annual Graduate Course Measuring Science started here at CWTS. 24 PhD students and professionals from the information industry (publishers and software houses) are taking week-long a crash course in bibliometrics and scientometrics. Virtually all researchers at CWTS are teaching one or more slots, which gives the students the unique opportunity to get a firm grip on the field from a variety of angles and perspectives. For me, this is a convenient way of immersing myself in the way scientometrics is being done at CWTS and to look at the various methodological debates in the field from the perspective of CWTS. First impression yesterday: the students were bombarded with quite a lot of data and empirical findings, which they seemed to take up calmly. No furious debates yet. But it was only the opening day, so who knows? I am going to discuss the work on modelling the peer review system today, let us see how this goes.