Here's an episode all about data—mobile phone data, to be exact. What are we talking about when we talk about using “mobile phone data” in our research? How are these data generated? Who produces them? What is this data good for…and maybe not so good for? How is it accessed and used? So many questions! To help provide some answers, in this episode Rachel, Levi, and Dani are joined by special guest, Wenfei Xu, Assistant Professor in the Department of Geography at UC Santa Barbara.