Using the rights contained in the Freedom of Information Act, we collected data on the teaching undertaken by staff at 52 UK universities. In contrast to workload modelling, our data reveals the extent of the variation in contact hours by institution, subject, and seniority. We provide for the first time an accurate measure of the teaching undertaken by staff on different contract types. One of our findings is that few universities employ full-time Teaching-only staff. It is some of the most prestigious universities that are leading the way in promoting this specialisation, with important implications for teaching and research.