The frequency of migrant crossings, and dangers faced by thousands of people continues to attract headlines across Europe. Here we take a deep dive into UNHCR and Frontex figures, plus data from the UK's Home Office.We will discuss the sources themselves, what they show, how they differ, their publishing schedules and their limitations. We will look at how to access the data, to visualise them, and to find other data with which to enhance these primary sources, not to mentions the stories these will yield!