Harald Meier is a Diploma-Geographer who graduated from the Department of Geography at the University of Münster, Germany, in 2010. His diploma thesis offered a new approach to world city network research and eventually he founded the Digital Space Lab in 2011 where he conducts social network analyses with a special focus on the spatial configurations of online networks. He takes particular research interest into economic sector and production network analysis of the global economy. In 2014 Harald has teamed up with the Globalization and World Cities (GaWC) Research Network to promote his research project “Hyperlink Network Geographies”. NodeXL has been his prime tool for social network analysis and data visualization.