Professor William H. Schmidt (@bschmidt_msu) from the USA. Bill is a leading thinker and mover on international comparisons, and his original thinking on the means of drawing lessons from the big international surveys – particularly TIMSS – has produced ground-breaking insights into the operation of education systems. At this seminar (the first to be held at our new UK HQ, The Triangle) he gave personal reflections on over two decades of working on method and enquiry, as well as reflecting on how learning from transnational surveys can, and should, take place.