Tanja is a historian of migration and diaspora. Her main research interests are in wider British World history, especially the cultural and social history of Scottish, English and German immigrant communities. She is particularly interested in the communities' associational life in North America, the Antipodes and parts of Asia. Tanja has long since been keen to engage the wider public with her research, and works with community groups and museums to do so. Tanja is also a prolific commentator on wider social and political issues, particularly in connection to migration and, more recently, Brexit.