Over the past 15 years, a growing number of countries have offered residence or citizenship in return for a financial investment or even just a payment. While residence by investment programmes have been common for many years in high-income countries, the recent development of citizenship by investment (CBI) programmes in the European Union—and particularly in Malta—has attracted much controversy. This seminar series takes as multi-disciplinary approach to examine the implications and impacts of citizenship by investment, bringing together scholars from law, sociology, politics and history.