Daniele Quercia is passionate about mining data to answer multidisciplinary research questions. From urban informatics to personality studies, he is exploring the complex relationship between our offline and online worlds at Yahoo! Labs in Barcelona. Previously, as Horizon researcher at the University of Cambridge, he was working on a grand challenge that aims to transform our digital footprints into real-world services. His research lies at the intersection of data mining, social computing, urban informatics, computational social science, and web science. He speaks at top-tier conferences (such as ICDM, Ubicomp, CSCW, WSDM) about how our digital footprints will help us address societal issues. Before starting to work in Cambridge (UK), he lived in Cambridge (USA) where he was Postdoctoral Associate at MIT and worked on social networks in a city context. Before joining MIT, Daniele received his PhD from UC London, and his thesis was nominated for BCS Best British PhD dissertation in Computer Science. During his PhD, he was a Microsoft Research PhD Scholar and MBA Technology Fellow of London Business School. To understand the meaning of being a computer scientist in today's global society, he interned at the National Research Council in Barcelona and at NII in Tokyo and, before that, he studied at PoliTO (Italy), KIT (Germany), and UIC (USA). He is now a senior member of Wolfson College in Cambridge, Honary Research Fellow at UC London, and member of the 'Ordine degli Ingegneri di Torino'.