Nando Sigona is the author of 'Undocumented migration' (with Roberto G. Gonzales, Martha Franco and Anna Papoutsi, Polity, 2019), 'Unravelling Europe's 'migration crisis'' (with Heaven Crawley, Franck Duvell, Katharine Jones, and Simon McMahon, Policy Press 2018), 'Sans Papiers: The social and economic lives of young undocumented migrants' (with Alice Bloch and Roger Zetter, Pluto Press, 2014) and editor of 'Within and beyond citizenship' (with Roberto G. Gonzales, Routledge 2017), and The Oxford Handbook of Refugee and Forced Migration Studies (with Elena Fiddian Qasmiyeh, Gil Loescher and Katy Long, Oxford University Press, 2014). He is also one of the founding editors of Migration Studies, an international peer-reviewed journal by Oxford University Press, and editor of Bristol University Press "Global Migration and Social Change" series.